ABSTRACT Soybean (Glycine max L.) is one of the important food commodities in Indonesia. Soybean demand continues to increase every year. Riau soybean production in 2019 was 583.5 tons and in 2021 soybean production decreased dramatically to 390.48 tons. The decline in soybean production is due to land conversion and low soil fertility. The low level of fertility in the soil can be overcome by…