Prosiding fasilitas forum kerjasama pengembangan biofatmaka

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PERBAIKAN EFISIENSI PEMUPUKAN P PADA JAHE EMPRIT)
(balai penelitian tanaman rempah dan obat indonesian Spice and medicinal Crops Research institute, 2004-07-14) Muchamad Yusron dan M. Januwati
s been done by using Organic fertilizer and biofertilizer, in Order to reduce the use Of inorganic fertilizers, as well as to zeduce environmental pollution. This experiment was aimed to study Of using rock phosphate, zeol ite and biofertilizers in order to improve phosphate use efficiency on small ginger production. The field experiment was carried out at Kecama tan Ampel , Kabupaten Boyolali, which is located at elevation 800 asl, soi 1 type is Andosol, from October 2001 to August 2002, using randomized block design, with 9 treatments, i.e. (1) 350 kg rock phosphate + 140 kg biofertilizer, (2) 175 kg rock phosphate + 140 kg biofertilizer, (3) 300 kg sp-36 + 140 kg biofertilizer, (4) 150 kg SP-36 + 140 kg biofertilizer, (5) 350 kg rock phosphate + 140 kg biofertilizer + 400 kg zeolite, (6) 175 kg rock phosphate + 140 kg biofertilizer + (7) 300 kg SP36 + 140 kg 4 00 kg zeolite, biofertilizer + 400 kg zeolite, (8) 150 kg SP36 + 140 kg biofertilizer + 400 kg zeolite, and (9) 300 Basic fertilizers, were 20 kg SP36 per hectare. ton/ ha manure, 500 kg Urea /ha and 400 kg KCI/ha,