Coupled Effects of Soil Water and Nutrients on Growth and Yields of Maize Plants in a Semi-Arid Region

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	Coupled Effects of Soil Water and Nutrients on Growth and Yields of Maize Plants in a Semi-Arid Region
其他题名	Coupled Effects of Soil Water and Nutrients on Growth and Yields of Maize Plants in a Semi-Arid Region
	Sun ZhanXiang; Zheng JiaMing; Sun WenTao
	2009
发表期刊	PEDOSPHERE
ISSN	1002-0160
卷号	19 期号:5 页码:673-680
摘要	Interaction between soil water and nutrients plays an important role in sustainable crop management in semi-arid environments. On the basis of a field experiment conducted from 2000 to 2003, this study examined the coupled effects of irrigation and fertilizers on maize growth and yield in a semi-arid region of northeastern China. In terms of plant productivity, nitrogen fertilizer had the most significant effect followed by irrigation and phosphate levels. The combined application of nutrients and irrigation exerted a synergistic effect on the grain yield of maize plants. Regression analysis indicated that optimal levels of nitrogen and phosphate, in addition to adequate irrigation, could greatly improve the efficiency of grain production. Similarly, optimization of soil nutrient availability substantially increased water use efficiency. These suggested that for the most efficient and sustainable crop production, irrigation and nutrient management should be based on a quantitative understanding of water/nutrients interaction, particularly in semi-arid and arid regions.
其他摘要	Interaction between soil water and nutrients plays an important role in sustainable crop management in semi-arid environments. On the basis of a field experiment conducted from 2000 to 2003, this study examined the coupled effects of irrigation and fertilizers on maize growth and yield in a semi-arid region of northeastern China. In terms of plant productivity, nitrogen fertilizer had the most significant effect followed by irrigation and phosphate levels. The combined application of nutrients and irrigation exerted a synergistic effect on the grain yield of maize plants. Regression analysis indicated that optimal levels of nitrogen and phosphate, in addition to adequate irrigation, could greatly improve the effi-ciency of grain production. Similarly, optimization of soil nutrient availability substantially increased water use efficiency.These suggested that for the most efficient and sustainable crop production, irrigation and nutrient management should be based on a quantitative understanding of water/nutrients interaction, particularly in semi-arid and arid regions.
关键词	IRRIGATED CORN USE EFFICIENCY NITROGEN RATE NITRATE MANAGEMENT PHOSPHORUS crop irrigation nitrogen phosphorus
收录类别	CSCD
语种	英语
资助项目	[National High Technology Research and Development Program (863 Program) of China]
CSCD记录号	CSCD:3774675
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/157389
专题	中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Sun ZhanXiang,Zheng JiaMing,Sun WenTao. Coupled Effects of Soil Water and Nutrients on Growth and Yields of Maize Plants in a Semi-Arid Region[J]. PEDOSPHERE,2009,19(5):673-680.
APA	Sun ZhanXiang,Zheng JiaMing,&Sun WenTao.(2009).Coupled Effects of Soil Water and Nutrients on Growth and Yields of Maize Plants in a Semi-Arid Region.PEDOSPHERE,19(5),673-680.
MLA	Sun ZhanXiang,et al."Coupled Effects of Soil Water and Nutrients on Growth and Yields of Maize Plants in a Semi-Arid Region".PEDOSPHERE 19.5(2009):673-680.