Determining Balanced Mixture Ratio of Palm Bagasse Compost to Improve Growth and Yield of Soybean

Abstract Soybean productivity in Indonesia was greatly affected by low soil fertility due to the excessive use of chemical fertilizers. Applying organic fertilizer or compost such as palm bagasse could be a potential source matter improve and crop productivity. An effective should rich fiber high C/N ratio. Therefore, is recommended mixed with other ratio materials accelerate composting increase N content. This study aimed determine mixture (PBC) materials, Azolla, Gliricidia leaves, tofu dreg waste. conducted Completely Randomized Block Design two factors. The first factor type mixing ingredients second dose (%) PBC combination Urea (%), namely 0, 25, 50, 75, 100%. Each treatment repeated blocks. Results showed that all sources promising substitute Urea. Moreover, application 100% exhibited highest soybean yield, suggesting provide sufficient nutrients for growth. present emphasized production optimization dependence on fertilizers, thus highlighting potency more sustainable cultivation using fertilizer.