<![CDATA[The low production of local soybeans in Indonesia is caused by several factors, such as low soil fertility, the use of uncertified seeds, and unbalanced fertilization that it’s not suitable for plant needs. This study aims to determine the NPK fertilizer 16:16:16 dose that provides the highest growth and yield for each dose of rice husk charcoal on Anjasmoro soybean plants. The research method used was an experimental method with Randomized Block Design (RBD) factorial, consisting of 9 treatments and repeated 3 times. The first factor was rice husk charcoal, consisting of 3 levels: a0 (control), a1 (10 ton ha-1) and a2 (20 ton ha-1). The second factor was NPK 16:16:16 fertilizer, consisting of 3 levels: n1 (150 kg ha-1), n2 (200 kg ha-1), and n3(250 kg ha-1). The data were analyzed using ANOVA to determine interaction then continued with DMRT test at 5% level. The results showed that there was an interaction between rice husk charcoal and NPK fertilizer on the number of leaves at 35 dap, number of seeds per plant, and weight of seeds per plant. The treatment of 20 ton ha-1 of rice husk charcoal and 250 kg ha-1 of NPK fertilizer yielded the highest result for number of leaves at 35 dap (28,89 leaves), number of seeds per plant (56,44 seeds), and seed weight per plant (5,74 g).Keywords: growth, NPK, rice husk charcoal, soybean, yield]]>
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