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Effects of Stillage on Dryland Soil and Wheat Yield

Wang Ligang Li Gongzhi(Soil and Fertilizer Institute, Henan Academy of Agricultural Sciences,Zhengzhou, 450002)  
After an application of 30.750~75.000 kg/hm2. of stilalge to the N120P90 farmland in West Henan lateritic soil, 10.2%~12.8% of wheat yield, 18.6%~28.6% of soil N, 26.0%~42.4% of P and 20.3%~24.4% of of organism are increased. The best yield increase effect comes from the proportional use of stillage N, inorganic N and phosphorus. Two years of test with 18.750~37.500 kg/hm2. stillage and inorganic N+P application indicates that 1.1%~47.2% of N, 7.6%~10.1% of P and 15.2%~38.3% of organisms in soil are enhanced.
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