| 潮土区氮肥运筹对小麦产量和氮肥利用率的影响 |
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| 引用本文： | 李丙奇,孙克刚,和爱玲,张欣. 潮土区氮肥运筹对小麦产量和氮肥利用率的影响[J]. 河南化工, 2010, 27(19): 38-40 |
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| 作者姓名： | 李丙奇 孙克刚 和爱玲 张欣 |
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| 作者单位： | 河南省农业科学院,植物营养与资源环境研究所,河南,郑州,450002;信阳市农业局信息中心,河南,信阳,464000 |
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| 基金项目： | 十一·五国家科技支撑计划,河南省科技攻关项目 |
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| 摘 要： | 研究了氮肥运筹对小麦产量和氮肥利用率的影响,结果表明:以控释BB肥处理最佳,达8070kg/hm2。控释尿素基肥处理和33.3%氮肥基肥+33.3%氮肥拔节+33.3%氮肥抽穗期处理产量分别为7796kg/hm2和7978kg/hm2,三处理之间没有达到1%极显著水平。在施用普通尿素的各个处理中,33.3%氮肥基肥+33.3%氮肥拔节+33.3%氮肥抽穗期处理的氮肥利用率最高,为36.8%,可见适当的施肥方式也能提高氮肥的利用率。控释尿素基肥处理和控释BB肥基肥处理的氮肥利用率分别为45.7%和47.3%,均高于施用普通尿素的各个处理,控释BB肥基肥处理的氮肥利用率高于控释尿素基肥处理的氮肥利用率。
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| 关 键 词： | 小麦 氮肥运筹 产量 氮肥利用率 |
Effects of Wheat Yield and Nitrogen Use Efficiency of Nitrogen Application in Chao Soil Region |
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| LI Bing-qi,SUN Ke-gang,HE Ai-ling,ZHANG Xin. Effects of Wheat Yield and Nitrogen Use Efficiency of Nitrogen Application in Chao Soil Region[J]. Henan Chemical Industry, 2010, 27(19): 38-40 |
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| Authors: | LI Bing-qi SUN Ke-gang HE Ai-ling ZHANG Xin |
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| Affiliation: | 1. Institute of Plant Nutrition, Agricultural Resources and Environmental Science , Henan Academy of Agricultural Sciences , Zhengzhou 450002 , China ; 2. Agricultural Bureau Information Center of Xinyang , Xinyang 464000 , China) |
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| Abstract: | The experiment of nitrogen application on wheat yield and nitrogen use efficiency is conducted. The result shows that the best treatment of wheat yield is 8 070 kg/hm^2 of BB fertilizer,the second wheat yield is7 978 kg/hm^2 of N33.3% ＋ N33.3% ＋N33.3%（N33.3% as basal and N33.3% top- dressed, and N33.3% Green up -dressed） ,the third wheat yield is 7 796 kg/hm^2 of controlled- release urea. There＇s no obvious difference among the three treatments. Nitrogen use efficiency of BB fertilizer and controlled- release urea are better than N33.3% ＋ N33.3% ＋ N33.3%. Nitrogen use efficiency of N33.3% ＋ N33.3% ＋ N33.3% is the highest among treatments of base to dressing ratio of nitrogen fertilizer. |
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| Keywords: | wheat nitrogen application yield nitrogen use efficiency |
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