| 三种水肥处理模式下冬小麦根系生长及水氮利用效率 |
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| 引用本文： | 李志勇,郭永新,郭玉琦.三种水肥处理模式下冬小麦根系生长及水氮利用效率[J].河南科技大学学报(农学版),2003,23(1):1-4. |
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| 作者姓名： | 李志勇 郭永新 郭玉琦 |
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| 作者单位： | 河南科技大学,农学院,河南,洛阳,471003 |
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| 基金项目： | 国家自然科学基金(30070451)，中德合作项目(0339712A)A2子项目 |
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| 摘 要： | 试验结果表明：优化水肥及秸秆还田优化水肥条件下冬小麦总根量显著高于传统水肥，根长密度和根重密度随土层深度递减速度慢，氮肥当季利用率显著提高，但各处理条件下水分利用效率差异不明显。
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| 关 键 词： | 水肥 处理模式 冬小麦 根系 生长发育 氮肥 利用效率 秸秆还田 |
| 文章编号： | 1008-4673(2003)01-0001-04 |
| 修稿时间： | 2002年12月20 |
Growth and efficiency of water and nitrogen of wheat under optimized models |
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| LI Zhi-yong,GUO Yong-xin,GUO Yu-qi.Growth and efficiency of water and nitrogen of wheat under optimized models[J].Journal of Luoyang Agricultural College,2003,23(1):1-4. |
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| Authors: | LI Zhi-yong GUO Yong-xin GUO Yu-qi |
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| Abstract: | The results of analysis are as the following. The irrigation - optimized fertilization and irrigation - optimized fertilization with crop residues significantly make total root amount of winter wheat more than traditional irrigation fertilization. The root length density and root weight density decrease slowly according to soil depth, and the efficiency of nitrogen fertilization using increase significandy. The efficiency of water using in each treatment is insig-nificandy different. |
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| Keywords: | Winter wheat Optimized irrigation fertilization Traditional irrigation fertilization Crop residues |
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