Abstract
This study aims to obtain the best combination of decanter cake (DC) and organic materials,chicken manure (PKA) on soybean growth and yield at Ultisols.. The research design used wasa Randomized Block Design, with treatment of combination of DC and PKA. The treatmentswere control (recommended inorganic fertilizer: 100 kg / ha NPK), DC 15 ton / ha + PKA 0 ton/ha, DC 10 ton / ha + PKA 5 ton / ha, DC 7.5 ton / ha + PKA 7 , 5 ton / ha, DC 5 tos / ha + PKA10 ton / ha, DC 0 ton / ha + PKA 15 ton / ha. Parameters observed: Number of productivebranches, number of pods per plant, number of filled pods, soybean grain yield . The dataobtained were analyzed by means of variance and DMRT at the 5 percent level. The resultsshowed that the combination of DC and PKA could improve soil chemical properties, and hada significant effect on the number of productive branches, yield components and soybean yield.The best combination for the highest soybean yield was the combination of DC 5.0 tonnes / ha+ PKA 10.0 tonnes / ha.
Highlights
Penelitian ini bertujuan untuk mendapatkan kombinasi terbaik dari decanter cake (DC) dan pupuk kandang ayam (PKA) terhadap hasil kedelai
This study aims to obtain the best combination of decanter cake (DC) and organic materials, chicken manure (PKA) on soybean growth and yield at Ultisols
The results showed that the combination of DC and PKA could improve soil chemical properties, and had a significant effect on the number of productive branches, yield components and soybean yield
Summary
Penelitian ini dilakukan di Desa Dusun Baru 1°02’00.1"S 102°03’03.0"E, Kecamatan VII Koto, Kabupaten Tebo, Jambi, pada ketinggian 20 m di atas permukaan laut. Pupuk kandang ayam (PKA) yang digunakan adalah kotoran ayam yang sudah di fermentasi dengan EM4 selama 2 minggu. Dekanter cake (DC) yang digunakan adalah yang telah di fermentasi dengan dekomposer EM4 selama 8 minggu dan di kering anginkan selama satu minggu, sebelumnya dalam bentuk fresh diambil dari PT Bukit Bintang Barisan Oil Palm Factory (1°23’10.0 “S 103°30’28.8" E). Untuk melihat pengaruh perlakuan maka variabel yang diamati adalah jumlah cabang produktif, jumlah polong per tanaman, jumlah polong berisi dan hasil biji kedelai per satuan luas, selanjutnya analisis data dilakukan analisis ragam dengan uji F dengan taraf. Hasil analisis bahan organik DC dan PKA yang digunakan, tertera pada Tabel 1. Parameter Kadar Air (%) pH C-Organik (%) C/N N-Total (%) P-Total (%) K-Total (%)
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