Abstract
The purpose of this experiment is to evaluate the best combination of inorganic fertilizers and organic material from palm oil mill waste decanter cake, which give the best Chinese kale growth and yield at ex-coal mined soils. This is a pot research, conducted at Agricultural Farm, Agriculture Faculty, Jambi University, using RCBD with one factors and 11 treatments of combinations of NPK + Decanter Cake fertilizer from palm oil mill solid waste. The parameters observed were increase in plant height and number of leaves, leaf area and plant fresh weight. The results showed, the best treatments for increasing plant height and number of leaves was achieved at 50% of NPK from recommended doses with DC 20 ton/ha or 75% of NPK with DC 20 tons per hectare. For leaf area and plant fresh weight (yield), was achieved at 50 percent of NPK from recommended doses + DC 15 tons per hectare. The conclusion of this research is to increase chienese kale growth and yield in ex-coal mining soil can be done by fertilizing NPK 50 percent from recommended doses + decanter cake 15 tons per hectare.
Highlights
Tujuan penelitian ini adalah untuk mendapatkan kombinasi terbaik dari pupuk anorganik dan bahan organik dari limbah pabrik kelapa sawit yang memberikan pertumbuhan dan bobot segar kailan terbaik yang ditanam pada tanah bekas tambang batu bara
The results showed, the best treatments for increasing plant height and number of leaves was achieved at 50% of NPK from recommended doses with decanter cake (DC) 20 ton/ha or 75% of NPK with DC 20 tons per hectare
Pengaruh Pemanfaatan Kompos Solid dalam Media Tanam dan Pemberian Pupuk NPKMg (15:15:6:4) terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq) di Pre Nursery
Summary
Penelitian ini dilaksanakan di Teaching and Research Farm, Fakultas Pertanian Universitas Jambi. Benih kailan varietas Nemo, pupuk NPK, DC (decanter cake dalam bentuk kering dan siap pakai), sebelumnya bentuk fresh diambil dari Pabrik PT Bukit Bintang Barisan (1°23’10.0"S 103°30’28.8"E) dan tanah bekas tambang batu bara diambil dari Desa Sungai Gelam (1°40’00.2"S 103°40’06.9"E). Penelitian ini menggunakan RancanganAcak Kelompok (RAK) yaitu kombinasi pupuk kimia dan DC, Persentase pengurangan dosis pupuk kimia berdasarkan pada dosis anjuran pemupukan untuk tanaman kailan; Pupuk kimia NPK 100% + DC 0 ton/ha; Pupuk NPK 75% + DC 0 ton/ha; Pupuk NPK 50% + DC 0 ton/ha; Pupuk NPK 0% +. Tanaman di tanam di polybag dengan menggunakan media tanah bekas tambang batu bara dan diberi pupuk dasar pupuk kandang ayam 15 ton per hektar. Selanjutnya data yang diperoleh dianalisis dengan sidik ragam dan dilanjutkan dengan Uji DMRT pada taraf 5%
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