[1]戚龙海,党廷辉,陈璐.旱塬冬小麦水分利用特征及对施肥的响应[J].水土保持研究,2009,16(03):105-109.
　QI Long-hai,DANG Ting-hui,CHEN Lu.The Water Use Characteristics of Winter Wheat and Response to Fertilization on Dry-land of Loess Plateau[J].Research of Soil and Water Conservation,2009,16(03):105-109.
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旱塬冬小麦水分利用特征及对施肥的响应

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年03期 页码: 105-109 栏目: 出版日期: 2009-06-20
Title:
The Water Use Characteristics of Winter Wheat and Response to Fertilization on Dry-land of Loess Plateau
作者:
戚龙海1,2, 党廷辉1, 陈璐3
1. 中国科学院 水利部 水土保持研究所, 陕西 杨陵 712100;
2. 中国科学院研究生院, 北京 100049;
3. 西北农林科技大学 资源环境学院, 陕西 杨陵 712100
Author(s):
QI Long-hai1,2, DANG Ting-hui1, CHEN Lu3
1. Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water Resources, Yangling, Shaanxi 712100, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3. College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
水分利用效率; 施肥; 旱地; 叶面积指数; 冬小麦
Keywords:
water use efficiency; fertilization; dry-land; leaf area index(LAI); winter wheat
分类号:
S512.11.062;S512.11.01
摘要:
为了揭示施肥对黄土高原旱地冬小麦水分利用效率（WUE）的影响，通过对不同施肥处理条件下水分利用效率相关指标的研究发现：增施氮肥降低了小麦生育前期的叶片WUE，而提高了小麦生育后期的叶片WUE，并显著提高了小麦的叶面积指数（LAI），而增施磷肥效果不明显。增施氮肥显著提高了小麦的生物量和产量，从而提高了相应的生物量WUE和产量WUE；增施磷肥对小麦的生物量和产量的提高有一定的促进作用，但对生物量WUE和产量WUE的提高不明显。生物量、产量、LAI和相应的生物量WUE、产量WUE都呈极显著正相关，说明通过施肥提高了小麦的LAI，进而提高了群体光合效率和干物质积累，从而提高了水分利用效率。
Abstract:
The impact of fertilization on water use efficiency(WUE) of winter wheat on dry-land of Loess Plateau was researched through observing the factors about water use efficiency under different fertilization treatments. The results show that increasing nitrogen application decreased the leaf WUE in prior period of growing periods but increased it in later period and increased the LAI of wheat. There was no obvious impacts on leaf WUE and LAI by increasing the phosphate fertilizer. Increasing nitrogen application significantly increased WUE in level of biomass and yield by increasing biomass and field of wheat and more phosphate fertilizer application increased the biomass and yield but was no significant impacts on WUE in level of biomass and yield. Correlation analysis between biomass, yield, LAI and WUE were significantly correlated because of increasing the LAI of wheat by fertilizing and then increasing the photosynthetic efficiency of population and accumulation of dry matter and increasing the WUE finally.

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备注/Memo

收稿日期:2009-1-4。
基金项目:国家“973”计划项目（2005CB121102）；中国科学院知识创新重要方向项目（KZCX2-YW-424-2）
作者简介:戚龙海（1983- ），男，硕士研究生，主要从事土壤环境和水分利用的研究。E-mail：qilonghai@163.com
通讯作者:党廷辉（1964- ），男，博士，研究员，主要从事土壤作物养分循环与管理研究。E-mail：dangth@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01