CD Skripsi
Pengaruh Bahan Organik Dari Dua Jenis Serasah Daun Ketapang Dan Pupuk N, P, K Terhadap Pertumbuhan Dan Hasil Tanaman Kedelai (Glycine Max L.)
Soybean is one of the multipurpose plants, because it can be used as food, feed, and industrial raw materials. This study aims to determine the interaction, the main factor, and the best combination of organic matter application of two types of ketapang leaf litter and N,P,K fertilizer on the growth and yield of soybean (Glycine max L). This research was conducted at the Experimental Garden and Soil Science Laboratory Faculty of Agriculture, University of Riau. This research was carried out from February to May 2023. The design used in this study was a completely randomized design (CRD) consisting of two factors. Factor I was ketapang leaf litter consisting of 3 levels: 0, 0.9 g per polybag large types of ketapang, 0,9 g per polybag small types of ketapang. Factor II was the fertilizer of N,P,K consisting of 4 levels: 0, (0.1 urea+0.16 TSP+0.2 KCl), (0.2 urea+0.32 TSP+0.4 KCl), (0.3 urea+0.48 TSP+0.6 KCl) g per polybag. The interaction of two types of ketapang leaf litter and N,P,K fertilizer had a significant effect on soil pH, N-total, P-total, K-total and total growth rate. The best main factor of ketapang leaf litter was small type of ketapang leaf litter 0.9 g per polybag while the main factor for the best N,P,K fertilizer was N,P,K fertilizer (urea 0.3+TSP 0.48+KCl 0.6 g per polybag). The best combination on the growth and yield of soybean plants was the provision of large and small ketapang leaf litter 0.9 g per polybag and N,P,K fertilizer (urea 0.3+TSP 0.48+KCl 0.6 g per polybag).
Keywords : Ketapang Leaves, N, P, K fertilizer, Soybeans
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