Jurnal Agroplasma is an Open Access Journal published by LPPM Universitas Labuhanbatu established since 2014. By publishing biannually on May and October, Jurnal Agroplasma publishes original articles, review articles, case studies, and short communication on the subject of agrotechnology. This journal has been accredited Fifth Rank (Peringkat 5) by the Ministry of Research, Technology, and Higher Education, Republic of Indonesia (No. 152/E/KPT/2023, dated 25 September 2023). This accreditation is valid from Vol. 9 No. 2 (October 2022) to Vol. 14 No. 1 (May 2027). P-ISSN : 2303-2944 E-ISSN : 2715-033X
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Respon Pertumbuhan dan Produksi Tanaman Kembang Kol (Brassica oleracea var. botrytis) Terhadap Pemberian Biochar dan POC Urin Kambing
One of the ways to increase cauliflower productivity is by providing nutrients for plants through the provision of organic materials. This study used a factorial Randomized Block Design with 2 factors. The design used in this study was a factorial Randomized Block Design with 2 factors. The first factor is Biochar (B) which consists of 4 levels, namely: B0 = 0 kg / polybag, B1 = 100 g / polybag, B2 = 200 g / polybag and B3 = 300 g / polybag. The second factor is goat urine (K) which consists of 4 levels, namely: K0 = 0 ml / liter of water / plot, K1 = 25 ml / liter of water / plot, K2 = 50 ml / liter of water / plot and K3 = 75 ml / liter of water / plot. The parameters observed in this study were plant height, number of leaves, stem diameter, production per sample, production per plot, cauliflower diameter. The results showed that the provision of biochar fertilizer had no significant effect on plant height, number of leaves and stem diameter, but had a very significant effect on production per sample, production per plot and cauliflower diameter. While the provision of goat urine POC had no significant effect on the number of leaves and stem diameter but had a very significant effect on plant height, production per sample, production per plot and cauliflower diameter. The interaction of the two treatments had no significant effect on all observation parameters. Keywords: cauliflower, biochar, goat urine POC
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Pengaruh Eco-Enzyme dan Air Kelapa Pada Tanaman Sawi Samhong King (Brassica rapa subsp chinensis L.) Pada Sistem Hidroponik di Seameo Biotrop Bogor
Eco-enzyme is a process that can be used to valorize organic waste (fresh vegetable, fruit peel waste), in which fermentation is added brown sugar and water and selective microorganisms are used, namely bacteria and yeast. In addition to enzymes that can help plant growth and development, there are also hormones that are involved and interact with enzymes. Plant metabolic rate. One of the plants that require enzymes and hormones in its growth and development is the Brassicaceae family, namely samhong mustard greens. This research was conducted at the SEAMEO BIOTROP greenhouse located at Jalan Raya Tajur Km 6, Pakuan, South Bogor Sub-district, Bogor City, West Java, Indonesia. The research was conducted from April 2022 to May 2022. The research method used is the experimental method, employing a Double Factor Randomized Block Design (RBD) with treatments consisting of eco-enzyme factor with 4 levels: b0 (AB mix (control)), b1 (EE 8 ml/L), b2 (EE 10 ml/L), and b3 (EE 12 ml/L) and coconut water factor with 3 levels: k1 (2 ml/L), k2 (4 ml/L) and k3 (6 ml/L). Observation data were analyzed by analysis of variance and further tested by Duncan's multiple range test at the 5% level. The results of the F test and DMRT test showed that the treatment combination b0ke (AB mix and coconut water 6 ml/L) gave the best results on all observation parameters (plant height, number of leaves, root length, and plant fresh weight). Keywords: AB Mix, coconut water, eco enzyme, samhong king
Pengaruh Pemberian Pupuk Dolomit dan SP-36 Terhadap Pertumbuhan dan Perkembangan Tanaman Cabai Merah (Capsicum annum L.)
This study aims to determine the effect of dolomite and SP-36 fertilizer on the growth and production of red chili plants (Capsicum annum L.). The hypothesis tested in this study is the existence of a single response to dolomite and SP-36, as well as the interaction of both on the growth and production of red chili. The study was conducted from May to July 2024 at the experimental garden of the Faculty of Agriculture, Indonesian Community Development University (UPMI) Medan, using a factorial Randomized Block Design (RAK) with two factors: (1) Dolomite with three levels (D0 = without dolomite, D1 = 5 g/plot, D2 = 10 g/plot) and (2) SP-36 with three levels (S0 = without SP-36, S1 = 4.03 g/plot, S2 = 6.03 g/plot), with 9 treatment combinations. The results showed that dolomite administration had a very significant effect on the number of branches, fruit weight of sample plants, and fruit weight per plot, but was not significant on plant height and number of leaves at all observation ages. The treatment of dolomite 10 g/plot (D2) gave the best results for most parameters compared to the control (D0) and a dose of 5 g/plot (D1). The application of SP-36 fertilizer also had a very significant effect on the weight of the sample plant fruit and the weight of fruit per plot, but was not significant on plant height, number of leaves, and number of branches. The treatment of SP-36 at a dose of 6.03 g/plot (S2) showed the best results on several growth and production parameters. The interaction between dolomite and SP-36 had a very significant effect on the number of branches and weight of fruit per plot, but was not significant on other vegetative parameters. This study shows that the application of dolomite and SP-36 fertilizers significantly increases the production of red chili plants, especially in terms of the number of branches and fruit weight, with optimal doses of dolomite 10 g/plot and SP-36 6.03 g/plot. Keywords: dolomite fertilizer, SP-36, red chili
Intensitas Ganoderma boninense Pada Kelapa Sawit Fase TM di Lahan Tadah Hujan Perkebunan Rakyat Sungai Dua Dusun XII
Ganoderma boninense is a soil-borne pathogenic fungus responsible for basal stem rot (BSR) disease in oil palm (Elaeis guineensis Jacq.), which significantly reduces palm productivity. This study investigates the intensity of Ganoderma boninense in oil palm trees at the mature or productive stage grown on rainfed land with monoculture and polyculture planting pattern. The research was conducted through field observations and random purposive sampling across several plantation blocks. Disease intensity was determined based on disease incidence and severity using standard assessment scales. Results showed a range of disease intensities, influenced by plant age, soil conditions, drainage, and plantation sanitation practices. The highest disease intensity occurred in older palm stands with poor water management and lack of disease control efforts. The findings indicate that Ganoderma boninense remains a serious threat to oil palm cultivated in rainfed areas. Effective early detection and integrated disease management strategies are essential to reduce yield losses and maintain sustainable oil palm production under rainfed conditions. Keywords: ganoderma boninense, basal stem rot, oil palm, disease intensity, rainfed land
Pengaruh Pemberian Pupuk CMA dan Pupuk NPK Terhadap Pertumbuhan dan Produksi Tanaman Kacang Tanah (Arachis hypogea L.)
Peanut plants in Indonesia are the most important agricultural commodity after soybeans, playing a strategic role in national food security as a source of protein and vegetable oil. The type of research method used in this study employed an experimental design called the Randomized Block Design (RBD) with a 4 x 4 factorial pattern and 3 replications. The factors studied included the effect of biofertilizer CMA and NPK fertilizer. The total treatment combinations were 4 x 4 = 16 combinations. The data source in this study consisted of primary data, which is data obtained directly from the source by conducting research experiments directly in the field. Data collection techniques were through observation and direct research experiment results in the field. The results of the variance analysis showed that the use of arbuscular mycorrhizal fungi (CMA) biofertilizer had a significant effect on plant height, number of branches, pod weight per sample plant, and pod weight per plot. Keywords: CMA fertilizer, NPK fertilizer, peanuts
Pengaruh Pemberian Berbagai Konsentrasi Eco Enzyme Beberapa Kulit Buah Lunak Terhadap Pertumbuhan dan Hasil Tanaman Selada (Lactuca sativa L.) Varietas Grand Parid
The low productivity of lettuce is caused by the declining quality of soil, both physically, chemically, and biologically. Improving production can be achieved through the proper application of organic fertilizers to enhance soil fertility. This study aimed to determine the effect of various concentrations of eco enzyme derived from soft fruit peels on the growth and yield of lettuce (Lactuca sativa L.) of the Grand Rapid variety. The research was conducted in February in Sukadami Village, South Cikarang District, Bekasi Regency. The method used was an experimental design arranged in a Completely Randomized Design (CRD) with a single factor, consisting of 8 treatments and 4 replications. The treatments included: C0 (control), C1 (2.5 ml/L), C2 (5 ml/L), C3 (7.5 ml/L), C4 (10 ml/L), C5 (12.5 ml/L), C6 (15 ml/L), and C7 (commercial eco enzyme at 10 ml/L). The results showed that the application of various eco enzyme concentrations did not significantly affect plant height, number of leaves, root length, or fresh plant weight based on the F-test at the 5% level. However, descriptively, treatment C6 (15 ml/L) produced the highest values across all parameters. The highest plant height at C6 was 9.43 cm (7 DAS), 15.70 cm (14 DAS), and 23.15 cm (21 DAS). The highest number of leaves was also observed in C6 at 13.86 leaves (28 DAS). Mean root length was 17.99 cm, fresh weight 36.14 g, leaf area 214.17 cm², and root weight 2.54 g. Eco enzyme at 15 ml/L showed potential to improve lettuce growth descriptively, although not statistically significant. Keywords: eco enzyme, soft fruit, lettuce
Deteksi Keberadaan Nematoda Parasit Elaeolenchus parthenonema Pada Serangga Penyerbuk Kelapa Sawit Elaeidobius kamerunicus Faust (Coleoptera: Curculionidae) dari Deli Serdang dan Simalungun Sumatera Utara
In Indonesia, numerous reports indicate a decline in the population of the oil palm pollinating insect (SPKS) Elaeidobius kamerunicus (Coleoptera: Curculionidae). The parasitic nematode Elaeolenchus parthenonema has not yet been investigated as a potential agent contributing to this SPKS population decline. This research aims are to determine the presence of parasitic nematodes in SPKS populations from Simalungun Regency and Deli Serdang Regency, North Sumatra Province, and to understand the life cycle of these parasitic nematodes. The parasitic nematode E. parthenonema was found, with a low infestation severity per individual SPKS: 1.9 nematodes from Simalungun and 4.94 nematodes from Deli Serdang. Juvenile nematodes (J2, J3) and adults were found in the body cavities of male and female of SPKS imagoes. J2 and J3 were commonly observed in the body cavity, while adults were rarely found. The life cycle of E. parthenonema nematodes begins with J3 exiting from SPKS imagoes and moving to the male oil palm inflorescence to infect the last instar larvae and pupae of SPKS. J3 undergoes two successive molts to become an adult nematode. E. parthenonema is parthenogenetic, so no male nematodes were found. Adult nematodes produce eggs, which then hatch into J1, remaining within the parent’s body. J2 and J3 move out into the SPKS body cavity, consume host’s organ and continuing the life cycle. Keywords: insect, pollinator, nematode, parasitic, oil palm
Pupuk Hayati Cendawan Mikoriza Arbuskula (CMA) dapat Mengefisienkan penggunaan Pupuk NPK Terhadap Pertumbuhan dan Produksi Tanaman Bawang Merah (Allium aslonicum L.)
This study aimed to investigate the effect of arbuscular mycorrhizal fungi (AMF) and NPK fertilizer, both individually and in combination, on the growth and yield of shallot (Allium ascalonicum L.). The experiment was conducted using a Randomized Complete Block Design (RCBD) with two factors: AMF (0, 5, 10, and 15 g/plant) and NPK fertilizer (0, 15, 30, and 45 g/plot), each replicated three times. Observed parameters included plant height, number of leaves per plant, number of bulbs, bulb diameter, and fresh bulb weight. Data were analyzed using ANOVA and further tested with Duncan’s Multiple Range Test (DMRT) at a 5% significance level. The results showed that the interaction between AMF and NPK fertilizer had no significant effect on all observed parameters. However, certain combinations such as 10 g AMF with 30 g NPK and 15 g AMF with 30 g NPK tended to yield higher averages in bulb number and weight compared to single treatments. The use of AMF has potential to improve nutrient uptake efficiency and support more sustainable shallot cultivation. Keywords: shallot, arbuscular mycorrhizal fungi, NPK fertilizer, growth, yield
Pengaruh Penambahan Pupuk Hayati dan POC Urine Domba Terhadap Pertumbuhan dan Hasil Tanaman Padi (Oryza sativa L.) Varietas Inpari 32
Rice is an agricultural commodity that produces rice as the staple food of more than 95% of the Indonesian population. The national demand for rice has reached more than 30 million tons per year. On the other hand, the challenges faced in procuring rice production are increasingly severe, among others: The rate of population growth and the relatively high level of rice consumption, some fertile paddy fields have been converted to other businesses, and the level of productivity of paddy fields is declining due to the low content of soil organic matter. According to the Ministry of Agriculture, the program to increase rice production that can be done quickly is intensification with fertilization, both inorganic and organic fertilizers. This research was conducted from August 2023 to November 2023. In Pasirjengkol Village, Majalaya District, Karawang Regency, West Java. The research method used is the experimental method, employing a Single Factor Randomized Block Design (RBD) consisting of 5 treatments, each repeated 5 times. The treatments include P0 (Control), P1 (Biofertilizer), P2 (LOF of Sheep Urine), P3 (Biofertilizer (50%) + LOF of Sheep Urine (50%)), P4 (Biofertilizer (100%) + LOF of Sheep Urine (100%)). The observational data were analyzed using analysis of variance and further tested with the Duncan Multiple Range Test (DMRT) at a 5% significance level. The research results indicate that treatment P4 (Biofertilizer (100%) + LOF of Sheep Urine (100%)) gave the highest results on the growth and yield of INPARI 32 rice plants in all observation parameters. Keywords: INPARI 32 rice, sheep urine POC, biofertilizer
Pengaruh Pemberian POC Limbah Buah dan Kotoran Ayam Terhadap Pertumbuhan dan Produksi Kacang Panjang (Vigna sinensis L.)
Fertilization using organic fertilizers in agricultural land can increase the number of organisms in the soil and the chemical, physical and biological properties of the soil can be improved. This study aims to determine the effect of providing POC fruit waste and chicken manure on the growth and production of long beans (Vigna sinensis L.) and to determine the best dose for the growth and production of long beans. This study applies a Factorial Randomized Block Design with 2 treatment factors repeated 3 times. Factor one concentration of POC fruit waste consists of 4 levels: P0 = 0 ml / L / plot, P1 = 200 ml / L / plot, P2 = 300 ml / L / plot and P3 = 400 ml / L / plot. Factor 2 dose of chicken manure fertilizer consists of 4 levels: K0 = 0 kg / plot, K1 = 2 kg / plot, K2 = 4 kg / plot and K3 = 6 kg / plot. The parameters observed included plant length, stem diameter, number of pods per sample/harvest, pod length/sample, pod weight per sample and pod weight per plot. The results of this study indicate that the provision of POC concentration of fruit waste and chicken manure fertilizer doses have a significant effect on all observed variables. There was no interaction between the provision of POC concentration of fruit waste and chicken manure fertilizer doses on all growth and production variables of long beans (Vigna sinensis L.) Keywords: fruit waste, chicken manure, long beans
Analisis Faktor-Faktor yang Mempengaruhi Permintaan Sayuran Hidroponik (Studi Kasus : Analisa Agrokreasi Jl. Eka Rasmi Gg. Eka Rosa Kelurahan Gedung Johor Kecamatan Medan Johor Kota Medan Sumatera Utara
Hydroponics is a method of growing plants without using soil as a growing medium. The word hydroponic consists of 'hydro' (water) and 'ponic' (work); therefore, hydroponics can be understood as agriculture that uses water as the growing medium. Agrokreasi Analysis is a place for cultivating hydroponic vegetable plants and a marketplace for buying and selling hydroponic vegetable plants located in Medan City. This research uses the case study method, which is research conducted by directly observing the field. The data sources in this study are in the form of primary data. Primary data is data obtained directly from the source by conducting direct interviews with consumers who buy hydroponic vegetables at Agrokreasi Analysis using a questionnaire that has been prepared in advance according to the research objectives and needs. The data collection technique was carried out through interviews, observation, and questionnaires. The independent variables used in this study are price, number of family members, and consumer income, while the dependent variable in this study is the demand for palm kernel sprouts. The sample in this study consisted of 30 palm oil farmers with a demand for hydroponic vegetables. The sampling technique used was accidental sampling, which involves determining the sample based on chance, that is, whoever happens to purchase hydroponic vegetables and coincidentally meets the researcher. The analysis results indicate that the price variable (X1) affects the demand for hydroponic vegetables (Y) with a significance value of 0.009 < 0.05. The variable of family size (X2) affects the demand for hydroponic vegetables (Y) with a significance value of 0.505 > 0.05. The variable of consumer income (X3) affects the demand for hydroponic vegetables (Y) with a significance value of 0.718 > 0.05. Simultaneously, the study results obtained a significance value of 0.001 < 0.05, which means that price (X1), family size (X2), and consumer income (X3) simultaneously have a significant effect on the demand for hydroponic vegetables (Y) in Analisa Agrokreasi. Keywords: demand, price, number of family members, consumer income
Desain Taman Kupu-Kupu Sebagai Pengembangan Perkebunan Kelapa Sawit Berbasis Konservasi Berkelanjutan di Tangkahan Sumatera Utara
This study reveals that the development of a butterfly garden as a post-oil palm plantation land use strategy in Tangkahan holds significant ecological and social potential. Observations indicate a clear difference in butterfly species composition between the garden area and the former plantation, with a moderate diversity index and low similarity index. These findings underscore the importance of mosaic habitat management to enhance species diversity. Several host and nectar plants were identified, including Citrus sp., Ageratum conyzoides, Chromolaena odorata, and Lantana camara, which support a lifecycle-based garden design. Community perception was generally positive, and chi-square analysis showed that public support transcended age, education, and occupation. The garden is zoned into three key areas: conservation core, education zone, and buffer zone, covering a 100 x 100 meter area. With construction progress reaching 40%, the integration of ecological and social elements must continue to ensure long-term sustainability of conservation efforts in the region. Keywords: butterfly garden, biodiversity, sutainable conservative, garden zoning, host and nectar planting
Efektivitas Ekstrak Kunyit (Curcuma longa L.) dan Pupuk NPK Terhadap Insidensi Penyakit Virus Keriting Kuning Pada Cabai Rawit (Capsicum frutescens L.)
Yellow leaf curl virus infection in chili pepper (Capsicum frutescens L.) can significantly reduce crop yield. This study aimed to evaluate the effect of turmeric extract and NPK fertilizer doses on the incidence of yellow leaf curl virus in chili pepper plants. The research was conducted at the experimental field of Universitas Pembinaan Masyarakat Indonesia from June to August 2025 using a factorial Randomized Complete Block Design (RCBD) with two factors: turmeric extract (0%, 10%, 15%, 20%) and NPK dosage (0, 3.3 g, 5 g, 6.6 g per plant), resulting in 16 treatment combinations. Disease incidence was observed from 2 to 9 weeks after transplanting. The results showed that the highest incidence occurred at weeks 3 and 8. The K3P0 treatment (high-dose turmeric without NPK) resulted in the lowest incidence rate at 11.2%, while K1P3 (low-dose turmeric + high NPK) showed the highest at 137.5%. Although ANOVA results revealed no statistically significant differences (p>0.05), descriptively, high-dose turmeric treatments reduced symptoms and spread of disease. These findings highlight turmeric's potential as an eco-friendly botanical agent for managing viral diseases in chili cultivation. Keywords: chili pepper, disease incidence, NPK, turmeric, yellow leaf curl virus
Respon Pertumbuhan dan Hasil Tanaman Selada Merah (Lactuca sativa L.) Varietas Red Rapid Akibat Pemberian Air Fermentasi Limbah Organik
The less optimal management of organic waste results in waste still accumulating without any follow-up actions. Efforts to reduce the spike in organic waste piles can be made by utilizing it as fermentation water. This study aims to determine the effect of providing fermentation water from organic waste on the yield and growth of red lettuce, variety Red Rapid. The research method uses an experimental method with a Single Factor Completely Randomized Block Design (RBD). The factor tested is the addition of fermentation water from organic waste, which consists of 5 treatments and is repeated 5 times. The treatments used include A (Control 0 ml/l), B (Concentration 100 ml/l), C (Concentration 200 ml/l), D (Concentration 300 ml/l), and E (POC NASA 5 ml/l). The effect of the treatments was analyzed using variance analysis, and if tested with F at a 5% significance level, it would proceed with the DMRT (Duncan Multiple Range Test) at a 5% level. The results of the study show that treatment C The concentration of Fermented Water from organic waste at 200 ml/l yielded the highest results for the number of leaves at 28 days after planting (23.6 leaves), Keywords: fermented water, organic waste, red lettuce (Lactuca sativa L.)
Pengaruh Pemberian POC Limbah Buah dan Kotoran Kambing Terhadap Pertumbuhan dan Produksi Tanaman Terung Ungu (Solanum melongena)
The utilization of organic fertilizers can be a solution to reduce dependence on inorganic fertilizers and also contribute to improving the surrounding environmental conditions. This study aims to evaluate the effect of applying fruit waste POC and goat manure fertilizer on the growth of purple eggplant (Solanum melongena L). The experimental design used a randomized block design consisting of two factors. The first factor is the dose of goat manure fertilizer, which includes: K0 (0 kg/plot), K1 (2 kg/plot), K2 (4 kg/plot) dan K3 (6 kg/plot). The second factor is the concentration of fruit waste POC, which includes : B0 (0 ml/L.air/plot), B1 (100 ml/L.air/plot), B2 (200 ml/L.air/plot) dan B3 (300 ml/L.air/plot). The parameters observed in this study include plant height, stem diameter, number of productive branches, number of fruits per plant, number of fruits per plot, weight of fruits per plant, and weight of fruits per plot. The analysis of variance shows that the application of goat manure fertilizer and fruit waste POC did not have a significant effect on plant height, stem diameter, and the number of productive branches. However, there was a highly significant effect on the number of fruits per plant, the number of fruits per plot, the weight of fruits per plant, and the weight of fruits per plot. The interaction between the two treatments did not affect all observed parameters. Keywords: purple eggplant, fruit waste poc, goat manure fertilizer
Pengaruh Pemberian Kompos Daun Gamal (Gliricidia sepium) Terhadap Pertumbuhan dan Hasil Tanaman Tomat (Solanum lycopersicum)
This study aims to analyze the effect of gamal leaf compost on the vegetative growth of tomato plants, with a focus on improving soil physical and chemical properties, increasing nutrient availability, and reducing dependence on chemical fertilizers. Four treatment combinations were replicated three times, resulting in 12 experimental plots. Each plot consisted of five plants, resulting in a total of 60 tomato plants, effectively increasing tomato growth. The results of this study indicate that the application of 3 kg of gamal leaf compost and 1 kg of soil (B3) significantly impacted tomato growth and yield. This also provides a solution for horticultural farmers and supports sustainable agriculture. Keywords: gamal leaf compost, tomato plants
Pengaruh Pemberian Pupuk Organik Cair Nasa dan Zat Pengatur Tumbuh Terhadap Pertumbuhan dan Hasil Produksi Tanaman Pakcoy (Brassica rapa L.)
This study aims to analyze the effect of using NASA liquid organic fertilizer and growth regulators on the growth and production of pak choy (Brassica rapa L.). This study used an experimental method with a randomized block design (RAK) consisting of two main factors, namely the dosage of NASA liquid organic fertilizer and growth regulators. The dosage of liquid organic fertilizer used was 2 ml/L of water, 5 ml/L of water, and 8 ml/L of water, while the dosage of growth regulators used was 150 ml/L of water, 200 ml/L of water, and 250 ml/L of water. The parameters observed included plant height, number of leaves/sample, number of leaves/plot, and fresh weight/sample. The results showed that the combined use of NASA liquid organic fertilizer and growth regulators had a significant effect on pak choy growth parameters. Keywords: NASA liquid organic fertilizer, growth regulators, pakchoy
Dampak Perbedaan Varietas Terhadap Morfofisiologis Kedelai Tercekam Kekeringan
Soybean production in Indonesia has not shown a satisfactory trend, compounded by drought problems that adversely affect plant growth and metabolism. One of the various solutions offered is the use of drought-resistant/tolerant soybean varieties. This study aims to examine how drought-resistant/tolerant varieties differ from drought-susceptible varieties in their morphophysiological response to drought. The study was conducted in a plastic house in Aras Kabu Village, Beringin Subdistrict, Deli Serdang Regency, North Sumatra, using a randomised block design with two factors and three replicates. The first factor was soil moisture conditions, consisting of 80% field capacity (FC) and 40% FC. The second factor was the testing of the Grobogan and Dering varieties. The observation parameters consisted of the number of leaves and leaf K uptake. The results showed that there was a significant interaction between the use of varieties and drought conditions, where the Dering variety significantly reduced the number of leaves, while the Grobogan variety, which is susceptible to drought, increased leaf K uptake to survive. Keywords: soybean, drought, stress, varieties
Pengaruh Biostimulan dan Pupuk Kandang Sapi Terhadap Produksi Tanaman Cabai Rawit (Capsicum frutescens L.)
This study aims to determine the effect of biostimulant and cow manure on the production of cayenne pepper plants (Capsicum frutescens L.). The research problem departs from the fluctuations in cayenne pepper production in North Sumatra, which is influenced by the availability of nutrients in the soil. The study was conducted using a Group Random Design (RAK) with two factors, namely the dose of biostimulants B0 (0 ml/L), B1 (10 ml/L), B2 (15 ml/L) and B3 (20 ml/L) with a dose of cow manure S0 (0 g/polybag), S1 (100 g/polybag), S2 (200 g/polybag) and S3 (300 g/polybag). The observed parameters are production weight per sample and per plot. Data were analyzed using ANOVA and Duncan follow-up test (DMRT) at a confidence level of 5%. The results showed that the interaction of biostimulants and cow manure had a significant effect on the production weight per sample, with the best combination of B1S3 treatment (10 ml/L of biostimulant and 300 g/polybag of cow manure) yielding an average of 103.67 g per sample. Meanwhile, the single application of cow manure had a significant effect on the production weight per plot, with the highest dose of S3 (300 g/polybag) yielding 159.75 g per plot. The conclusion of the results of this study is that the use of a combination of low-dose biostimulants and high-dose cow manure can increase the production of cayenne pepper (Capsicum frutescens L.) plants, significantly compared to no treatment or low doses of cow manure. Keywords: cayenne pepper, biostimulant, cow manure
Respons Pemberian Kombinasi Dosis Pupuk Organik Hayati dan Pupuk NPK Urea terhadap Penyakit Jagung Manis (Zea mays L. Saccharata sturt) MS-Unsika di Kabupaten Sumedang
Sweet corn is one of the products of food crops products that until now the demand for these products is getting rapid. One of the limiting factors for the growth of sweet corn plants is nutrients. The state of nutrients in the soil greatly determines the yield of sweet corn because it can protect against various plant diseases. The effort to overcome this is by fertilizing, both using organic and inorganic fertilizers. The purpose of this study is to determine the response of a combination of doses of biological organic fertilizer and NPK Urea fertilizer to the main disease of sweet corn plants (Zea mays L. saccharata Sturt ) MS-Unsika in Sumedang Regency. This research was carried out on land owned by Biomethagreen (Educational House) on Banjar Sari Street, Awisurat Hamlet, Tanjungsari Village, Tanjungsari District, Sumedang Regency, West Java Province. The research method used in this study is a Single Group Random Design (RAK) consisting of 5 treatments that are repeated 5 times, so there are 25 experimental units. The results of the study showed that the treatment (P3) of organic fertilizer dose of 7 cube/ha plus 150+100 kg/ha of NPK and Urea inorganic fertilizer gave the best results against disease resistance in sweet corn, namely leaf blight with a stable average incidence of 1.26%, gray leaf spot disease with an average incidence of 0.8%, leaf rust disease with an average incidence of 0.07%. The conclusion is that there is a good response to the use of organic fertilizers and inorganic fertilizers simultaneously and in balance to the control of sweet corn plant diseases. Keywords: sweet corn, organic fertilizer, inorganic fertilizer, plant disease
Pertumbuhan dan Produksi Tanaman Jagung Manis (Zea mays Saccharata) Terhadap Pemberian Pupuk Kandang Sapi dan Pupuk Organik Cair
Efforts that can be made to increase corn productivity are by adding organic materials from plant residues and animal waste to the soil. This study aims to determine the effect of cow dung and liquid organic fertilizer from agricultural waste and their interactions on the growth and production of corn plants. This study used a Randomized Block Design with 2 factors and 3 replications to obtain 48 research plots. Factor I cow dung with the symbol "S" consists of 4 levels, namely: S0 = 0 g, S1 = 200 g, S1 = 300 g, S1 = 400 g. Factor II liquid organic fertilizer from agricultural waste with the symbol "P" consists of 4 levels, namely: P1 = 100 ml, P2 = 200 ml, P3 = 300 ml, P4 = 400 ml. The parameters observed in this study were plant height, number of leaves, flowering age, weight per plot, cob length, cob diameter. The results of the study showed that the provision of cow dung and liquid organic fertilizer had a very significant effect on all observation parameters. Interaction had no significant effect on all observation parameters. Keywords: cow dung, agricultural waste, sweet corn
Pengaruh Pemberian (CMA) dan Pupuk Mutiara Terhadap Pertumbuhan Dan Produksi Kacang Panjang (Vigna Sinensis L.)
This study aimed to evaluate the effect of Arbuscular Mycorrhizal Fungi (AMF) and Mutiara fertilizer on the growth and production of yardlong bean (Vigna sinensis L.). The research was conducted at the experimental field of Universitas Pembinaan Masyarakat Indonesia using a randomized block design with two factors: AMF doses (0, 5, 10, and 15 g/plant) and balanced NPK Mutiara fertilizer (0, 5, 10, and 15 g/plant). Parameters observed included plant length at 14, 21, 28, and 43 days after planting (DAP). Statistical analysis revealed that neither AMF nor Mutiara fertilizer, individually or in combination, significantly affected plant length during any observation period. However, a growth trend was observed, with the highest combination dose (15 g AMF + 15 g Mutiara) producing the tallest plant length of 3090 cm at 43 DAP. These findings suggest a potential synergistic effect between biofertilizers and chemical fertilizers in supporting plant growth, though not statistically significant. Further research with greater replication and more sensitive experimental design is recommended to validate these preliminary findings. Keywords: agrotechnology, balanced fertilization, long bean, mutiara fertilizer, mycorrhizal fungi
Respon Pertumbuhan dan Produksi Bengkuang (Pachyrhizus erosus L.) Terhadap Perendaman Auksin dan Pengaturan Jarak Tanam
This study aimed to evaluate the effect of auxin soaking and planting spacing on the growth and yield of yam bean (Pachyrhizus erosus L.). The experiment was conducted in Paya Pasir, Medan Marelan, North Sumatra, from March to July 2025, using a factorial Randomized Block Design (RBD) with two factors: auxin soaking duration (0 hours, 1 hour, 2 hours) and planting spacing (20×20 cm, 20×25 cm, 20×30 cm), each with three replications. The results showed that auxin soaking had a significant effect on vine length at 3 weeks after planting (WAP), whereas planting spacing had no significant effect on all measured parameters. The interaction between the two factors significantly affected vine length, tuber weight per sample, tuber weight per plot, and brix value. The best combination was obtained from treatment P1J1 (1 hour soaking and 20×25 cm spacing), producing the highest tuber weight per plot (574 g). These findings indicate that a combination of moderate auxin dosage and close planting spacing can enhance the productivity of yam bean. Keywords: jicama, auxin, planting spacing, growth, yield
Respon Pertumbuhan dan Produksi Tanaman Mentimun (Cucumis sativus L.) dengan Pemberian Pupuk Kandang Sapi dan Pupuk NPK
This study aimed to determine the effect of cow manure and NPK fertilizer, both individually and in combination, on the growth and yield of cucumber plants (Cucumis sativus L.). The experiment was conducted using a factorial Randomized Block Design (RBD) with two factors: cow manure (0, 1, 2, and 3 kg/plot) and NPK fertilizer (0, 60, 80, and 100 g/plot), each replicated three times. The observed parameters included plant height, number of leaves, number of fruits per plant, total fruit weight per plot, and fruit length. Data were analyzed using Analysis of Variance (ANOVA), followed by Duncan’s Multiple Range Test (DMRT) at the 5% significance level. The results showed that the interaction between cow manure and NPK fertilizer had no significant effect on all observed parameters. However, on average, the combination treatment of 2 kg cow manure and 100 g NPK fertilizer produced the best results across all growth and yield parameters of cucumber plants. Cow manure contributed to improving soil structure and fertility, while NPK fertilizer supplied essential macronutrients required by the plants. Keywords: Cucumis sativus L., cow manure, NPK fertilizer
Efektivitas Biofungisida Jamur Trichoderma harzianum dan Trichoderma koningii dengan Berbagai Dosis terhadap Intensitas Serangan Penyakit Layu Jamur Fusarium dan Pertumbuhan Vegetatif pada Tanaman Cabai Merah (Capsicum annum L.)
This study focuses on controlling Fusarium wilt disease in red chili plants, a common horticultural crop in Indonesia. The disease caused by Fusarium pathogens poses challenges to farmers. An alternative control method is the use of biofungicides derived from fungi Trichoderma harzianum and Trichoderma koningii. The research was conducted at two different locations, including the isolation of Fusarium pathogens and identification of Trichoderma fungi. The multiplication of T. harzianum and T. koningii was carried out on a rice medium at the Agensia Hayati / Botanical Pesticide Laboratory in Biaung. Seedling planting and biofungicide application took place at the Agensia Hayati Laboratory field, Jalan Tegal Harum, Gang Sakura, Biaung, East Denpasar District, Denpasar City, Bali, from May to August 2025.The experimental design used was a Completely Randomized Design (CRD) with 7 treatments and 5 replications. Treatments included a control (0 grams) and biofungicide doses of 10, 20, and 30 grams for both T. harzianum and T. koningii. Statistical analysis using one-way ANOVA showed significant differences (p<0.05) among treatments in reducing Fusarium wilt disease intensity. The highest dose of 30 grams of both biofungicides was the most effective, achieving 100% disease suppression 28 days after treatment. Additionally, the biofungicide application showed significant effects on the number of leaves at 7 days after treatment and plant height at 28 days after treatment. These results indicate that biofungicides from T. harzianum and T. koningii can be used as an environmentally friendly and sustainable alternative to control Fusarium wilt in red chili plants. Keywords: Fusarium Wilt, red chili pepper, Trichoderma harzianum, Trichoderma koningii
Pengaruh Sistem Olah Tanah dan Pemupukan NPK Terhadap Pertumbuhan dan Hasil Tanaman Jagung Manis (Zea mays L.)
This study aims to evaluate the effect of soil tillage systems and NPK fertilizer doses on the growth and yield of sweet corn (Zea mays L.). The study was conducted using a two-factor factorial RAK, namely soil tillage (no tillage, minimum, and maximum) and NPK doses (0, 60, 90, and 120 g/plot). The results showed that the maximum soil preparation treatment (O3) and NPK fertilizer rate of 120 g/plot (P3) generally yielded the best results. However, the combination of O1P2 (no soil preparation + 90 g of fertilizer) also showed high yields on certain parameters, indicating the potential for fertilizer efficiency without the need for intensive soil preparation. This study underscores the importance of combining appropriate land management and fertilization practices to sustainably enhance sweet corn productivity. Keywords: sweet corn, soil tillage system, NPK fertilizer, growth, yield
Pengaruh Pemberian Pupuk Organik Cair Kulit Pisang dan Kotoran Sapi Terhadap Pertumbuhan dan Produksi Tomat (Solanum lycopersicum L.)
Tomato (Solanum lycopersicum L.) is one of the vegetable commodities cultivated by farmers in Indonesia and is considered a multifunctional crop. In addition to being consumed as a vegetable, tomatoes are also used as raw materials in the pharmaceutical and cosmetic industries, as well as in food processing. This research was conducted at the Research Field of Pembangunan Panca Budi University, located in Dusun 3, Sampe Cita Village, Kutalimbaru District, Deli Serdang Regency, North Sumatra, at an altitude of approximately 500 meters above sea level. The aim of the study was to determine the effect of cow manure and banana peel liquid organic fertilizer (POC) on the growth and yield of tomato plants. The experiment employed a factorial randomized block design (RBD) with two factors, namely cow manure (K) and banana peel liquid organic fertilizer (C), each replicated three times. Factor I consisted of cow manure application (K) at four levels: K0 = 0 kg/plot, K1 = 1.5 kg/plot, and K2 = 3 kg/plot. Factor II consisted of banana peel POC application (C) at four levels: C0 = 0 ml/L water/plot, C1 = 175 ml/L water/plot, C2 = 350 ml/L water/plot, and C3 = 525 ml/L water/plot. The results showed that the application of cow manure and the concentration of banana peel POC significantly influenced plant height, stem diameter, number of fruits per plot, fruit weight per sample, total fruit weight per plot, and fruit diameter. However, these treatments did not significantly affect flowering time.. Keywords: cow manure fertilizer, banana peel liquid organic fertilizer (POC), tomato
Pengaruh Pemberian Pupuk Bokashi Limbah Ternak Sapi dan CMA (Cendawan Mikoriza Arbuscula) Terhadap Produksi Tanaman Mentimun Jepang (Cucumis sativus L.)
Japanese cucumber (Cucumis sativus L.) is one of the popular horticultural commodities due to its high nutritional value and benefits for health and beauty. However, the continuous use of chemical fertilizers to increase production can lead to environmental degradation and a decline in soil quality. Therefore, sustainable and eco-friendly cultivation innovations are needed, such as the use of organic fertilizers like cattle manure bokashi and biofertilizers such as Arbuscular Mycorrhizal Fungi (AMF). This study aimed to determine the effect of cattle manure bokashi and AMF application on the growth and yield of Japanese cucumber plants. The research was conducted experimentally using a Randomized Complete Block Design (RCBD) with a combination of bokashi and AMF treatments. Observed parameters included stem diameter, number of fruits per sample, fruit weight, and fruit length. The results showed that the application of bokashi and AMF, both individually and in combination, had a highly significant effect on plant yield. The best combination treatment was able to optimally improve both the quality and quantity of Japanese cucumber production. Keywords : bokashi, CMA, japanese cucumber, organic fertilizer, growth, production
Pengaruh Kompos dan Pupuk NPK 16:16:16 Terhadap Pertumbuhan dan Produksi Tanaman Terung Ungu (Solanum melongena L.)
Eggplant (Solanum melongena L.) is a vegetable crop cultivated for its fruit, which is used as a food ingredient, either consumed fresh or processed into various dishes due to its pleasant taste. The decline in purple eggplant production can be caused by several factors, including poor soil fertility, inadequate cultivation practices, and improper fertilizer use. This study aims to analyze the effect of compost and NPK 16:16:16 fertilizer on the growth and yield of purple eggplant, as well as the interaction between the two types of fertilizers. The research was conducted at the experimental field of the Faculty of Agriculture, Universitas Pembinaan Masyarakat Indonesia, using a factorial randomized block design (RBD). The factors tested were compost doses (0, 1, 2, and 3 kg/plot) and NPK 16:16:16 doses (0, 50, 100, and 150 grams/plot). Eggplant growth data were measured at 14, 21, and 28 days after planting and analyzed using ANOVA followed by Duncan's multiple range test. The results showed that the best fertilizer treatment for eggplant growth was the combination of 3 kg compost/plot and 150 g NPK/plot, which resulted in a plant height of 70.3 cm. This indicates that the combination of both fertilizers significantly improved plant growth compared to other treatments. Keywords: eggplant, compos, NPK fertilizer
Uji Daya Kecambah Cabai Merah Pada Berbagai Ekstrak dan Konsentrasi Pupuk Kasgotchar dengan Metode Uji Diatas Kertas
The objective of this study is to determine the germination capacity of red chili peppers in various types and concentrations of Kasgotchar extract using a paper-based test method. This study used a 6 x 3 x 2 Factorial RAK design. The type of Kasgotchar extract is the first factor, with six types (K1 = Kasgotchar 1, K2 = Kasgotchar 2, K3 = Kasgotchar 3, K4 = Kasgotchar 4, K5 = Kasgotchar 5, K6 = Kasgotchar 6), and the second factor is the concentration of Kasgotchar extract, with three concentration levels (E1 = 5% Kasgotchar extract, E2 = 10% Kasgotchar extract, E3 = 15% Kasgotchar extract). The parameters observed in this germination process were the germination index and the germination potential, measured at seven and fourteen days after sowing. The results of study showed that the treatment with Kasgotchar extract type only significantly affected the germination index at seven and fourteen days after sowing, as well as the potential for germination at seven days. The Kasgotchar extract concentration treatment did not show any significant effect on the germination index and potential at all observation ages. Meanwhile, the interaction between the type of Kasgotchar extract and the concentration of Kasgotchar extract only had a significant effect on the germination potential at fourteen days of seedling age. The highest germination index and the germination potential were obtained by the treatment of Kasgotchar extract type 6 (2.39 and 0.88), the treatment with 5 % concentration of Kasgotchar extract (1.54 and 0.76), and the interaction treatment between Kasgotchar type 6 with 5% concentration of Kasgotchar extract (2.44 and 0.90). Keywords: red chili, germination index, germination potential, kasgotchar, BSF
Respon Pertumbuhan dan Produksi Bawang Merah (Allium ascalonium L.) Terhadap Pupuk NPK dan Dolomit
This study was conducted at the experimental field of the Indonesian Community Development University (UPMI), Jalan Balai Desa Pasar 12 Marendal II, Patumbak District, Deli Serdang Regency, Medan. The elevation of the site is approximately 40 metres above sea level. The study was conducted from May to July 2025. The efforts required to meet the production needs of red onions involve enhancing soil productivity by utilising NPK fertiliser and dolomite to achieve maximum red onion production. This study employed a randomised block design (RBD) with two factors: NPK fertiliser and dolomite fertiliser. For precision, the experiment was repeated three times. The first factor was NPK fertiliser (N) with four levels: N0 = Control, N1 = 10 g/polybag, N2 = 20 g/polybag, and N3 = 30 g/plant. The second factor was dolomite (D) with four levels: D0 = Control, D1 = 10 g/polybag, D2 = 20 g/polybag, and D3 = 30 g/polybag. The results of the ANOVA test that showed significant effects were followed up with a 5% DMRT test. The response of NPK fertiliser treatment to plant height at 2 mst was significantly influenced, but at plant height observations of 3 mst, 4 mst, number of leaves, number of tubers per plant, tuber diameter, and tuber weight, there was no significant effect but an increase in each treatment. The best treatment average in this study was N2 = 20 g/plant. In this case, the dose or level of dolomite treatment should be increased further to achieve maximum production. Keywords: shallots, dolomite fertiliser, NPK fertiliser
Aplikasi Pupuk Organik Cair Tomat dan Cendawan Mikoriza Arbuskula Pada Tahap Aklimatisasi Terhadap Produksi Tanaman Kentang (Solanum tuberosum L.) Varietas Granola di Tongkoh
Potatoes have high nutritional value, making this plant widely cultivated in various regions in Indonesia. In Indonesia, this potato commodity has a fairly important role to be used as a material for household business industries, often also used as processed foods and made into flour and chips in large industries. The purpose of the study was to determine the effect of providing liquid organic fertilizer from tomatoes and the provision of arbuscular mycorrhizal fungi on potato plants at the acclimatization stage. This study was conducted in the IP2TP greenhouse (Berastagi Agricultural Technology Research and Assessment Installation), in Tongkoh, Dolat Rayat District with an altitude of ± 1340 meters above sea level. The research period began in September to December 2023. The results of the study showed that the provision of Liquid Organic Fertilizer (POC) Tomato (T) had a significant effect on tuber diameter and no significant effect on the number of tubers and tuber diameter. The best treatment was T2 (200 ml/L of organic fertilizer), and the application of Arbuscular Mycorrhizal Fungi (AMF) (C) had no significant effect on tuber number and diameter, with the best treatment being C2 (10 g AMF/plant). Keywords: potato, AMF, tomato organic fertilizer
Pengaruh ZPT Auksin dan POC Photosynthetic Bacteria (PSB) Terhadap Hasil Produksi Tanaman Kangkung Darat (Ipomoea reptans P.)
Ipomoea reptans P. commonly known as water spinach, is a leafy vegetable with high economic value and is widely consumed by the Indonesian population. This plant is extensively cultivated due to its short harvest cycle of approximately 25–30 days after planting, which provides farmers with the opportunity to increase land productivity. This study was conducted on agricultural land at the Universitas Pembinaan Masyarakat Indonesia (UPMI), Medan, from June to August 2025. A factorial Randomized Block Design (RBD) 4×4 with three replications was employed. The first factor was the Auxin Plant Growth Regulator (PGR) with four levels: Z0 = control, Z1 = 50 ml/L, Z2 = 100 ml/L, and Z3 = 150 ml/L. The second factor was POC PSB with four levels: P0 = control, P1 = 50 ml/L, P2 = 100 ml/L, and P3 = 150 ml/L. The results indicated that the application of Auxin PGR significantly affected the production parameters, with treatment P2 (100 ml/L) yielding a fresh weight of 58.1 grams. Furthermore, the interaction between Auxin PGR and POC PSB had a highly significant effect on the fresh weight of plants. The optimal combination was found in treatment Z3P2 (150 ml/L Auxin + 100 ml/L POC PSB), resulting in a fresh weight of 65.7 grams. In conclusion, the combined application of 150 ml/L Auxin PGR and 100 ml/L POC PSB significantly enhances the growth and yield of Ipomoea reptans and represents an environmentally friendly alternative technology to improve horticultural productivity. Keywords: ipomoea reptans, auxin plant growth regulator, POC PSB, growth, yield
Pengaruh Pemberian Pupuk Mono Kalium Phosphate MKP dan Ekoenzim Terhadap Pertumbuhan Serta Produksi dan Uji Metabolit Sekunder Tanaman Bawang Merah (Allium cepa L.)
This study aims to determine the effect of MKP fertilizer and ecoenzyme, as well as to determine the effect of interaction on the application of MKP fertilizer and ecoenzyme in improving the quality of growth, production, and secondary metabolite content tests. This study was conducted from December 2024 to March 2025 in Klumpang Village, Hamparan Perak District, North Sumatra. Using a factorial randomized block design (RAK) with 2 treatment factors, each treatment repeated 3 times. The parameters observed were plant height (cm), number of leaves (strands), fresh plant weight (gr), wet tuber weight (gr), dry tuber weight (gr) and secondary metabolite tests on 6 compounds, namely alkaloids, flavonoids, terpenoids, saponins, and tannins. The results showed that MKP fertilizer had a significant effect on plant height at 4 WAP, 6 WAP, 8 WAP, plant weight parameters, wet tuber weight, and dry tuber weight. The best treatment was M1 (MKP dose of 10 gr/plant). Ecoenzyme treatment did not significantly affect all parameters. The interaction between MKP fertilizer and ecoenzyme did not significantly affect all parameters. The best treatment combination was M2E0 (MKP 20 grams/plant and ecoenzyme (control)). The phytochemical test of secondary metabolites in shallot (Allium cepa L) extracts continued to increase with increasing doses of MKP and ecoenzyme fertilizers. The best treatment was M2E2 (MKP 20 grams/plant and ecoenzyme 20 ml/liter of water) with results of 4 to 5 plus as shown in the lab results. Keywords: MKP, ecoenzyme, red onion, secondary metabolite
Pengaruh Pemberian Pupuk Cendawan Mikoriza Arbuscular (CMA) dan Pupuk Kandang Sapi Terhadap Pertumbuhan dan Hasil Tanaman Terong Ungu (Solanum melongena L.)
This study aimed to examine the effect of Arbuscular Mycorrhizal Fungi (AMF) and cow manure fertilizer on the growth and yield of purple eggplant (Solanum melongena L.), as well as their interaction in enhancing productivity. The research was conducted using a factorial Randomized Block Design (RBD) with two factors. The first factor was AMF (M) with four levels: M0 = without AMF, M1 = 10 g/plot (100 kg/ha), M2 = 15 g/plot (150 kg/ha), and M3 = 20 g/plot (200 kg/ha). The second factor was cow manure fertilizer (P) with four levels: P0 = without cow manure, P1 = 1 kg/plot (10 tons/ha), P2 = 2 kg/plot (20 tons/ha), and P3 = 3 kg/plot (30 tons/ha). The observed parameters included plant height, number of leaves, number of branches, fruit diameter, fruit length, number of fruits per plot, and fruit weight per plot. The results showed that AMF significantly affected all growth and yield parameters. Cow manure fertilizer significantly influenced most parameters, especially fruit diameter, fruit length, number of fruits, and fruit weight. The interaction between AMF and cow manure fertilizer had a significant effect on yield parameters but was not significant for all vegetative growth parameters. Overall, the combination of 15–20 g/plot AMF with 2–3 kg/plot cow manure produced optimal growth and yield of purple eggplant..
Pengaruh Pemberian Pupuk NPK Mutiara dan Pupuk Kascing Terhadap Pertumbuhan dan Hasil Tanaman Okra Merah (Abelmoschus esculetus (L) Moench)
The aim of the research was to determine the effect of NPK pearl fertilizer and vermicompost fertilizer on the growth and yield of red okra plants. (Abelmoschus esculetus (L) Moench) This study used a factorial Randomized Group Design (RAK) with 2 treatment factors. The first factor was the application of NPK pearl fertilizer (N) consisting of four levels, N0: Control, N1: 15 g/polybag, N2: 30 g/polybag, N3: 45 g/polybag. The second factor was the application of vermicompost fertilizer (K) which consists of four levels, K0: Control, K1: 90 g/polybag, K2: 120 g/polybag, K3: 150 g/polybag. The parameters measured were plant height, stem diameter, number of branches, number of fruit per plant, number of fruit per plot, wet weight of fruit per plant, leaf chlorophyll content. Based on observation data from the Duncan’s Multiple Range Test (DMRT) analysis, the application of NPK Mutiara fertilizer showed a significant effect on plant height, stem diameter, number of branches, number of fruits per plant, number of fruits per plot, and fresh fruit weight per plant, with the best result observed at a dosage of 45 g/polybag (N3). The application of kascing fertilizer had a significant effect on all observed parameters, with the best result at 150 g/polybag (K3). The interaction between NPK Mutiara fertilizer and kascing fertilizer did not show a significant effect on any of the measured parameters. Keywords: pearl NPK fertilizer, vermicompost fertilizer, red okra
Pengaruh Lama Perendaman Air Kelapa dan Aplikasi Pupuk Kilat terhadap Pertumbuhan dan Hasil Panen Kacang Hijau (Vigna radiata L.)
This study aimed to evaluate the effect of coconut water seed soaking duration and flash fertilizer application on the growth and yield of mung bean (Vigna radiata L.). The experiment was conducted at the experimental field of the Faculty of Agriculture, Indonesian Community Development University, Medan, from May to August 2024. A Randomized Block Design (RBD) with two factors and three replications was employed. The first factor was coconut water soaking duration (0, 2, 4, and 6 hours), while the second factor was flash fertilizer application (0, 0.25, 0.5, and 1 cc/L). Observed parameters included plant height, number of leaves, flowering age, pod weight per plant, and pod weight per plot. Results indicated that a soaking duration of 6 hours (P3) had a highly significant effect on all observed parameters, producing the highest plant height, leaf number, and pod weight. Similarly, flash fertilizer at 1 cc/L (K3) promoted better vegetative and reproductive growth compared to other treatments. The interaction of P3K3 produced the best performance across growth and yield traits. These findings suggest that combining coconut water seed soaking for 6 hours with flash fertilizer application at 1 cc/L is an effective strategy to enhance mung bean productivity. Keywords: mung bean, coconut water, flash fertilizer, growth, yield
Analisis Kadar Bahan Organik Pada Tanah Ultisol di Perkebunan Kelapa Sawit Fase TBM (Tanaman Belum Menghasilkan) dan TM (Tanaman Menghasilkan)
Ultisol soil is soil with soil acidity problems, little organic material and low macro nutrients, so it has a big impact on the productivity of oil palm plants. Organic matter is one of the limiting factors and plays a very important role in nutrient delivery and as a nutrient buffer. This research was carried out at PT. Langkat Nusantara Kepong Kebun Tanjung Beringin Langkat Regency in Division 2 Immature Crops (TBM) and Mature Crops ™. From December 2023 to February 5 2024. This research aims to be able to determine the soil organic matter content in the Immature Plants (TBM) and Mature Plants ™ phases in ultisol soil in the oil palm plantations of PT. Langkat Nusantara Kepong Kebun Tanjung Beringin. This research used quantitative descriptive methods and a completely randomized design. Research Results: The organic C content of Tanjung Beringin gardens is relatively low. The C-organic content in the TBM area has a significant difference compared to the TM area. The N content of Tanjung Beringin garden soil is classified as very low and there is no significant difference between the TBM and TM areas. Keywords: ultisol soil, organic matter, palm oil, TBM, TM
Efektivitas Larutan Nabati Daun Paku Sisik Naga (Drymoglossum piloselloides) Terhadap Mortalitas Kutu Daun (Aphid) Pada Tanaman Kacang Panjang
One of the pests that attack long bean plants is aphid. Aphid pest control can uce herbal insecticides, namely herbal solutions derived from dragon scale fern leaves. Dragon scale fern leaves contain flavonoids, saponins, phenolics, essential oil and tannins. This study aims to determine the effect of herbal solutions of dragon scale fern leaves on the mortality of aphid in long bean plants and to determine the dose of herbal solutions of dragon scale fern leaves that are effective against the mortality of aphid in long bean plants. The method used in this study is the completely Randomized Design (CRD) method with 5 treatments and 4 replications, namely the control treatment of water/aquadest, 35ml, 45ml, 55ml, 65ml of dragon scale fern leaf herbal solution . Observations were made every day for 168 hours/7 days. The research data are presented in the form of graphs/tables. The result of quantitative observations were analyzed using Analysis of Variance. There was a significant difference between the effects of the treatments tested, s further testing was carried out using Ducan’s Multiple Range Test (DMRT) at a level of 5%. The P4 dose treatment (65ml of dragon scale fern leaft herbal solution) is the best and most effective treatment/dose for aphid mortality with a percentage of 88.75% at 7 days/168 hours after application. The high percentage of mortality and efficacy of dragon scale fern leaf herbal solution against aphid is due tothe influence of compounds contained in the dragom scale fern leaf solution, namely flavonoids which are toxic (kill) to aphid pests. Based on the Analysis of variance which was then carried out with a further DMRT test at a level of 5%, it showed that there was a significant difference in each dose of dragon scale fern leaf herbal solution Keywords : dragon scale fern, mortality, aphid
Pengaruh Konsentrasi Giberelin Terhadap Pertumbuhan Tiga Varietas Kacang Kedelai
The purpose of this study was to determine the growth of three soybean varieties against gibberellin concentration. The study was conducted in Sampecita Village, Kutalimbaru District, Deli Serdang Regency, North Sumatra, which was carried out from November 2024 to January 2025. This study used a factorial Randomized Block Design (RAK) experimental design consisting of 2 treatments, namely varieties (Dering 1, Dega 1 and Devon 1) and gibberellin immersion, namely: 0 ppm, 20 ppm, 40 ppm and 60 ppm which were repeated 3 times. The research data were analyzed and continued with the Duncan's mean difference test (DMRT). The results showed that the growth and production of soybean plants against varieties showed a significant effect on the number of productive branches and no significant effect on the parameters of plant height, number of leaves and root length. In the gibberellin treatment and the interaction of the two showed no significant effect on all parameters. Keywords: concentration, gibberellin, growth, soybean, variety
Pengaruh Kombinasi Dosis Pupuk NPK dan Konsentrasi Pupuk Organik Cair Limbah Buah-Buahan Terhadap Pertumbuhan dan Hasil Tanaman Tomat (Solanum lycopersicum) Varietas Gustavi F1
Tomato production in West Java has decreased in 2021-2023 due to suboptimal cultivation practices, especially in the continuous use of chemical fertilizers with excessive doses. The use of liquid organic fertilizers is one potential solution. The research method used is an experimental method, using a single factor Randomized Block Design (RAK) consisting of 9 treatments and repeated 3 times, with treatments consisting of A (NPK 300 kg + POC 0 ml), B (NPK 240 kg + POC 2 ml), C (NPK 240 kg + POC 4 ml), D (NPK 240 kg + POC 6 ml), E (NPK 240 kg + POC 8 ml), F (NPK 180 kg + POC 2 ml), G (NPK 180 kg + POC 4 ml), H (NPK 180 kg + POC 6 ml), I (NPK 180 kg + POC 8 ml). The observation data were analyzed by analysis of variance and further tested with the Duncan Multiple Range Test (DMRT) at a level of 5%. The results of the F test showed that there was a significant effect of the combination of NPK fertilizer doses and the concentration of liquid organic fertilizer from fruit waste on the growth and yield of tomato plants (Solanum lycopersium) of the Gustavi F1 variety. The DMRT test showed that treatment E (NPK 240 kg + POC 8 ml) gave the highest results on the average parameters of plant height 78.187 cm, Number of leaves 22.6 stalks, Stem diameter 9.387 mm, Fruit weight per grain 51.635 g, Number of fruits per plant 15.333 grains, Fruit weight per plant 792.667 g, Fruit sweetness level (Brix) 7.667. Keywords: NPK fertilizer, liquid organic fertilizer, tomato
Respon Pemberian Pupuk Kotoran Ayam dan Pupuk Organik Cair terhadap Produksi Tanaman Kedelai
Obtaining soybeans with good yields can utilize chicken manure fertilizer and liquid organic fertilizer from water hyacinth. This study aims to determine the effectiveness of chicken manure fertilizer and liquid organic fertilizer from water hyacinth on soybean plant production. The research method used a Factorial Randomized Block Design (RBD) consisting of 2 factors with 16 treatment combinations and 2 blocks. The factors studied were chicken manure fertilizer treatment (A) consisting of 4 levels: 0, 2, 3, and 3 kg/plot. The liquid organic fertilizer from water hyacinth (E) consisted of 4 levels: 0, 300, 400, and 500 ml/liter of water per plot. The parameters observed were: number of pods per plot (pods), pod weight per sample (g), and weight of 100 dry seeds (g). The research results indicate that the effectiveness of chicken manure fertilizer on soybean plant production has a very significant effect on the number of pods per plot (pods), pod weight per sample (g), and 100 dry seed weight (g). The best treatment was the application of chicken manure fertilizer at 3 kg/plot. Keywords: influential, production, treatment
Pengaruh Pemberian Kompos dan Urea Pada Pertumbuhan Tanaman Mentimun (Cucumis sativus L.)
This study aimed to evaluate the effect of compost and urea application on the growth of cucumber (Cucumis sativus L.). The experiment was conducted at the experimental field of the Faculty of Agriculture, Universitas Pembinaan Masyarakat Indonesia (UPMI), using a Randomized Block Design (RBD) with four treatments of compost and urea combinations, namely K0U0 (0 kg compost + 0 g urea), K1U1 (1 kg compost + 10 g urea), K2U2 (2 kg compost + 20 g urea), and K3U3 (3 kg compost + 30 g urea), each replicated three times. The observed parameters were plant height and number of leaves at 2, 4, 6, and 8 weeks after planting (WAP). Data were analyzed using analysis of variance (ANOVA) followed by Duncan’s Multiple Range Test (DMRT) at a 5% significance level. The results indicated that compost and urea treatments, either applied individually or in combination, did not significantly affect plant height and leaf number of cucumber at all observation periods based on ANOVA and DMRT analysis. However, there was a tendency of increased average plant height and leaf number under the highest combined treatment (K3U3). This suggests that balanced fertilization with compost and urea has the potential to support cucumber vegetative growth, although under the present experimental conditions, the effect was not statistically significant. Keywords: compost, urea, growth, cucumber
Respon Pertumbuhan Sawi Hijau (Brassica juncea L.) Terhadap Pemberian Pupuk Jadam Microbial Solution (JMS) dan NPK Cair
This study aimed to determine the effect of applying Jadam Microbial Solution (JMS) and liquid NPK fertilizer, both factorially and in combination, on the growth of mustard greens (Brassica juncea L.). The experiment was carried out using a factorial Randomized Block Design (RBD) consisting of two factors. The first factor was JMS application with four levels (J0 = 0 ml/l water, J1 = 100 ml/l water, J2 = 200 ml/l water, J3 = 300 ml/l water), and the second factor was liquid NPK fertilizer with four levels (N0 = 0 ml/l water, N1 = 10 ml/l water, N2 = 15 ml/l water, N3 = 20 ml/l water). Each treatment combination was repeated three times, resulting in 16 treatment combinations. The results showed that JMS application had a significant effect on plant height and number of leaves at all observation times (7, 14, and 21 days after planting/DAP), indicating improved vegetative growth and yield. Liquid NPK fertilizer application also significantly affected plant height and number of leaves at all observation times. The combination of JMS and liquid NPK fertilizer had no significant effect during the early growth stage (7 DAP), but showed significant effects on plant height and number of leaves at 14 and 21 DAP. These findings indicate that factorial application of JMS and liquid NPK fertilizer can enhance the growth of mustard greens, while their combination is effective at certain vegetative growth stages. Keywords: Brassica juncea L., jadam microbial solution, liquid NPK
Dampak Media Tanam Dan Pemberian Pupuk NPK Mutiara Terhadap Pertumbuhan Dan Produksi Tanaman Tomat Ceri (lycopersicum esculentum mill.)
This study aims to investigate the effect of planting media composition and NPK Mutiara fertilizer application on the growth and yield of cherry tomato plants (Lycopersicum esculentum Mill.) in North Sumatra. The research method used a factorial Randomized Block Design (RBD) with two factors: planting media composition (topsoil, cow manure/compost/chicken manure, and rice husk) and NPK Mutiara fertilizer dosage (0, 15, 25, and 35 g/plot). The observed parameters included plant height, number of leaves, number of productive branches, number of fruits per plant, number of fruits per sample, fruit weight per plot, and fruit diameter. The results showed that neither the single effect nor the interaction between planting media and NPK Mutiara fertilizer had a statistically significant effect on the growth and yield of cherry tomatoes. Environmental factors are presumed to be more dominant in influencing the results. Keywords: planting media, NPK fertilizer, growth, yield