Effect of bokashi quail manure and rice husk biochar on soil pH and soybean plants growth

Abstract

The availability of fertile land is currently increasingly limited, so land use leads to suboptimal land. Suboptimal land constraints are low elements of N, P, K, S, and microelements, low soil pH, the possibility of Al and Fe poisoning. The use of bokashi quail manure and rice husk biochar is expected to overcome suboptimal land constraints. The objective of this study is to apply the best amount of bokashi and biochar to soybean plants in poor soil. The study employed a completely randomized design, a field experiment methodology. The study used two types of treatments: bokashi quail dung, which came in doses of 15, 30, and 45 grams per polybag, and rice husk biochar, which came in doses of 15, 30, and 45 grams per polybag. According to the study's findings, applying bokashi 30 grams per polybag along with 15 grams of rice husk biochar per polybag could lead to the greatest rise in soil pH when compared to other treatments. The use of bokashi quail manure alone, at doses between 30 and 45 grams per polybag, can result in the highest plant height and number of leaves compared to other treatments.