Residu pupuk organik mendukung produksi dua varietas kedelai organik (Glycine max (l) merr) di lahan kering

Abstract

The experiments were conducted at IPB Research Station in Cikarawang, Darmaga,Bogor, from October 2010 to February 2011. The study was conducted to investigate the effect of residues of different organic manures on the production of soybean with 50% dosage in previous experiments. The manure rates were 10 ton chicken manure/ha, 1.75 ton Centrosema pubescens/ha and 1.75 ton Tithonia diversifolia/ha. All treatments were added with 5 ton chicken manure/ha, 1 ton rice husk charcoal/ha and 1 ton dolomite/ha. The experiment used two varieties of soybeans, i.e Anjasmoro and Wilis. This research used Split Plot design with three replication, the organic manure as the main plot and the soybeans varieties as the sub plot. The effect of three organic manure residues were significantly different in number of branch, number of nodule, and filled pod. Organic manure did not significantly affect in productivity of soybeans. The productivity of soybeans with chicken manure, Centrosema pubescens and Tithonia diversifolia were 2.13,1.99 and 2.07 ton/ha. Productivity in the second season was higher than that of first season, it incrased about 83.96%. Varieties were significantly different in filled pod number, 100 seeds weight. The productivity of Anjasmoro was higher than Wilis, they were 2.13 and 1.94 ton/ha, respectively.