Interaction of banana hump liquid organic fertilizer and N:P: Κ doses in supporting the agronomic potential of soybeans based on multivariate analysis

Abstract

The development of soybeans can be carried out by optimizing a sustainable growing environment so that the use of NPK chemical fertilizer needs to be combined with organic fertilizer, such as banana hump liquid organic fertilizer (LOF). A systematic evaluation of the interaction between banana hump LOF and N:P: K fertilizer dosage on the agronomic potential of soybeans has yet to be widely studied. Therefore, it is suitable to use multivariate analysis to evaluate this interaction. Meanwhile, this research aims to determine the effectiveness of evaluation criteria based on multivariate analysis and determine the best combination of interactions between NPK fertilizer dosage and banana hump LOF concentration on the agronomic potential of soybeans. The research was arranged in a 3 x 4 factorial randomized complete block design that focused on two factors: the concentration of liquid organic fertilizer from banana hump (0 mL/L, 100 mL/L, and 200 mL/L) and NPK fertilizer dosage (0 kg/ha, 75 kg/ha, 150 kg/ha, and 225 kg/ha) that was repeated three times. Based on this research, the characteristics of plant height and the number of pods per plant are critical assessment criteria, along with productivity in the interaction of NPK and LOF fertilizers. The polynomial-polynomial interactions of these three characters show a dynamic quadratic pattern. The interaction of 150 kg/ha NPK fertilizer with a LOF concentration of 100 mL/L is a promising technology for stimulating soybean growth and production. Therefore, this technology package can be recommended for soybean cultivation in a sustainable system.

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