2008•Hubei nongye kexueRequires access
Effect of "3414" Fertilizer experiment and Fertilizer Recommendation for Early-season Rice
Peng Yu
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Abstract
This paper studied the effect of nitrogen,phosphorus and potassium fertilization on early-season rice by the 3414 fertilizer experiment,which was conducted in Chibi city,Hubei province.The result showed that the effect of P fer-tilization on yield and economic benefit was the largest,the next was K,and N fertilization was the smallest.The highest increment of N,P and K were 677,2300 and 1 075 kg.hm-2,higher than control by 8.9,36.7 and 14.8%,respectively.The net income of N,P and K were enhanced by 365.7,2984.4 and 1 186.8 yuan.hm-2,respectively.According to fertiliz-er effect,the highest yield would be reached when N,P2O5 and K2O application rate was 180.1,57.3 and 67.5 kg·hm-2,and the highest profit would be reached when N,P2O5 and K2O application rate was 108.5,55.4 and 59.1 kg·hm-2,respectively.