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
Copyright (c) 2025 JURNAL AGROPLASMA https://creativecommons.org/licenses/by-nc/4.0
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