Organic Fertilizer Treatments Effect on the Soybean Growth (Glycine max L.Merr)
Technology and science for finding the best fit for increasing the growth of plants need the comparative applications. This research was conducted in a few Regencies of North Sumatra Province to seek the effect of growth and production of soybeans with the application of compost in the study area. The comparative techniques on the organic fertilizer usage for soybean (Glycine max L. Merr) were administered to collect the data. It applied a Randomized Block Design (RBD) consisting of 5 treatments, 4 replicates so that 20 experimental units were obtained, namely; B0 = Control of organic fertilizer; B1 = 45 grams of organic fertilizer; B2 = 194 grams of organic fertilizer; B3 = 349 grams of organic fertilizer, and B4 = 494 grams of organic fertilizer. Thus, obtained data were analyzed by ANOVA and continued with an average difference test according to Duncan (DMRT). The highest soybean plants in some regencies in Simalungun Regency in B3 treatment with a value of 57.50 cm and the lowest in Serdang Bedagai Regency in treatment B0 (without organic matter) with a value of 42.40 cm.