| 冬小麦施用控释氮肥增产效应研究初报 |
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| 引用本文： | 王新民,侯彦林,介晓磊,谭金芳.冬小麦施用控释氮肥增产效应研究初报[J].中国生态农业学报,2004,12(2):98-101. |
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| 作者姓名： | 王新民 侯彦林 介晓磊 谭金芳 |
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| 作者单位： | 1. 中国科学院生态环境研究中心,北京,100085
2. 河南农业大学资源与环境系,郑州,450002 |
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| 基金项目： | 河南省科技攻关项目"小麦大面积高产综合配套技术研究开发与示范"部分研究内容 |
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| 摘 要： | 冬小麦施用 2种控释N肥田间小区试验研究结果表明 ,不同灌水量、等N量下冬小麦施用乐喜施控释N肥 (F2 )和众品控释N肥 (F3 )均比施用普通尿素 (F1)显著提高产量 ,产量结构明显改善 ,N素利用效率分别提高 3%～ 5 % (W1)和 2 %～ 6 % (W2 ) ,经济效益F3 处理增收 10 82元 /hm2 ,而F2 处理平均减收 6 32 7元 /hm2 ,收获期耕层土壤所保持的N量较多。
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| 关 键 词： | 控释N肥 冬小麦 灌溉次数 N素利用效率 |
| 收稿时间： | 2003/5/13 0:00:00 |
| 修稿时间： | 2003/6/22 0:00:00 |
Effect of applying controlled release nitrogen fertilizer on yield enhancement of winter wheat |
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| WANG Xin-Min,HOU
Yan-Lin,JIE Xiao-
Lei and TAN Jin-Fang.Effect of applying controlled release nitrogen fertilizer on yield enhancement of winter wheat[J].Chinese Journal of Eco-Agriculture,2004,12(2):98-101. |
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| Authors: | WANG Xin-Min HOU
Yan-Lin JIE Xiao-
Lei and TAN Jin-Fang |
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| Abstract: | The field plot experiments of applying two kinds of controlled release nitrogen fertilizer (CRNF) on winter wheat were conducted, showing that the winter wheat yield and its components are improved, and the nitrogen use efficiency is elevated by a range from 2% to 6% under different irrigation conditions and same quantity of nitrogen. The N of two kinds of CRNF is not only absorbed by the winter wheat but also remains more than urea in cultivate layer at harvest stage. From the economic analyses, the net gain of wheat by CRNF treatment can be increased by 1082 yuan/hm2, more than that by urea treatment under an appropriate irrigation condition. |
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| Keywords: | Controlled release nitrogen fertilizer Winter wheat Irrigation times Nitrogen use efficiency |
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