Growth and Production of Young Pods of Purple Winged Bean with Different Doses of Chicken Manure

Abstract

The winged bean (Psophocarpus tetragonolobus L) is a tropical plant that all parts of the plant can be utilized and are relatively easy to cultivate. A purple winged bean is a varietal group that has high antioxidant activity. One way to optimize the growth and productivity of winged beans is by fertilizing them with organic fertilizers as an alternative to the inorganic fertilizer. This research was conducted to investigate to the effect of chicken manure on the growth and productivity of the winged bean Sandi IPB variety. The experiment was conducted from July to November 2022 in the Organic Field of the IPB Experimental Station in Cikarawang, Bogor. This study used a completely randomized block design (RCBD) with a single factor, namely chicken manure doses consisted of 0, 10, 20, and 30 tons ha-1. The results showed that increasing the dose of chicken manure increased the growth characteristics of winged bean plants, namely plant height, leaf number, leaf area, leaf potassium content, as well as yield components included fresh weight, dry weight, pod size, pod weight per plant, pod weight per plot, number of pods per plot, and productivity of young pods of winged bean. The relationship between manure rates and yield is linear, therefore the optimum dose of chicken manure cannot be determined yet. From the extrapolation, it can be predicted that the optimum chicken manure rate is 31.4 ton ha-1.