Growth Response of Edamame Soybeans on Various Combination Packages of Single and Compound Inorganic Fertilizers

Abstract

The many types of inorganic fertilizers cause us to have to choose the right type of inorganic fertilizer for the type and phase of plant growth. The purpose of this study was to determine the best combination of inorganic fertilizers that could increase the growth of edamame soybeans. The treatment was a combination of various types of inorganic fertilizer applications, namely: Control: organic basic fertilizer 2 t/ha + dolomite fertilizer 1 t ha-1 (P0), Urea 100 kg ha-1 + SP-36 150 kg ha-1 + KCL 100 kg ha-1 (P1), compound NPK 300 kg ha-1 (P2), compound NPK 150 kg ha-1 + Urea 50 kg ha-1 + SP-36 75 kg ha-1 + KCL 50 kg ha-1 (P3), Urea 100 kg ha-1 + SP-36 150 kg ha-1 + KCL 100 kg ha-1 + Gandasil B fertilizer (6 g 1-1 water) (P4), 300 kg ha-1 compound NPK + Gandasil B fertilizer (6 g 1-1 water) (P5), NPK compound 150 kg ha-1 + Urea 50 kg ha-1 + SP-36 75 kg ha-1 + KCL 50 kg ha-1 + Gandasil B fertilizer (6 g 1-1 water) (P6), and compound NPK 300 kg ha-1 + Gandasil fertilizer D (2 g 1-1 water) + Gandasil B fertilizer (6 g 1-1 water) (P7). The results showed that the application of various combinations of inorganic fertilizers affected the growth of edamame soybeans. This can be seen from the increase in number of branches, leaf area, weight wetness of plants, and the number of flowering plants. In general, the treatment P5 fertilizer package = NPK compound 300 kg ha-1 + Gandasil B fertilizer (6 g 1-1) was able to increase the best edamame soybean growth and simpler in application of fertilization.