Title: Effects of Decreasing Application Amount of Control-Released Fertilizer on Winter Wheat Yield,Nitrogen Efficiency and NO_3~- -N in Soil
Abstract: The test was conducted to compare the effects of reducing application rate of control-released fertilizer(CRF) and all as base fertilizer,farmer's traditional fertilization(FP) and optimized fertilization(OPT).The results showed that the wheat population and yield components of CRF treatment were better than those of FP and OPT treatments.The CRF treatment could keep the wheat yield stable or slightly increasing,and its N apparent recovery efficiency and N partial factor productivity increased by 30.3% and 57.2% respectively compared to FP treatment.The nitrate nitrogen content in each soil depth of CRF treatment was less than that of OPT and FP treatments,which greatly reduced the risk of nitrate leaching to the deep soil in the rainy season.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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