Shallots (Allium cepa L.) are one of the horticultural crops widely consumed by humans as a cooking spice mixture after chili. To obtain maximum shallot production, cultivation must be carried out in accordance with standards, one of the things that needs to be done is fertilization aimed at obtaining the desired results. The purpose of this study was to determine the effect of providing liquid organic fertilizer tofu dregs and arbuscular mycorrhizal fungi (AMF) and the interaction between tofu dregs POC and AMF on shallot production. This study was conducted at IP2TP (Berastagi Agricultural Technology Research and Assessment Installation) at an altitude of ± 1340 meters above sea level. The research period started from August to December 2023. This research used a Factorial Randomized Block Design consisting of 2 factors, namely the first factor of Tofu Dregs POC (A) where A0 = Control, A1 = Tofu Dregs POC 150ml/L, A2 = Tofu Dregs POC 300 ml/L, A3 = Tofu Dregs POC 450ml/L, and the second factor of CMA (C), where C0 = Control, C1 = CMA 6 gr/plant, C2 = CMA 12 gr/plant. The results of the study showed that the Application of Liquid Organic Fertilizer (POC) of Tofu Dregs (T) had no significant effect on all observed parameters. With the best treatment being A1 (Tofu Dregs POC 150 ml/L). The application of CMA (C) had no significant effect on all observed parameters. With the best treatment being C0 (Control). Application with the interaction between Tofu Dregs POC (A) and CMA (C) had no significant effect on all observed parameters. The best treatment was A3C2 (450 ml/L of tofu dregs fertilizer and 12 g of AMF per plant).

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