Field application of VP3 biofertilizer on soybeans (Glycine max L.) and yield comparison between four biofertilizers sold in the market

Abstract

The VP3 biofertilizer formulation begins with exploration of indigenous soil bacteria isolated from several soil samples in Malang-Indonesia. The VP3 Biofertilizer is a liquid formulation made from vermiwash and molasses as carriers, with 3 functional bacterial isolates. It has been proven to be able to increase the yield of mung beans, long yard beans, and green beans in the green house, however it has not been applied to soybean (Glycine max L.) in the field compared to other biofertilizers on the market. This study used soybean seeds of the Anjasmoro variety and consisted of 6 treatments (different types of biofertilizer) with a Randomized Block Design (RBD) namely VP3 biofertilizer, EM4 biofertilizer, Sumber Subur biofertilizer, Semanggi biofertilizer, and Magicgro G6 biofertilizer. This research was carried out in idle land. The application of VP3 biofertilizer when compared to other biofertilizers on the market generally gave better results on the parameters of growth and yield of soybeans in the field. This is indicated by the significant yield on leaf area per plant and yield of total seed weight per plot of soybean plant.