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Position: Home > Articles > Influence of N fertilizer on winter wheat productivity under soil water stress Chinese Journal of Soil Science 2000,31 (6) 262-264+285

施氮对土壤水分亏缺下冬小麦生产力的影响

作  者:
刘万代;王化岑;杨青华;赵秀琴
单  位:
河南农业大学;平顶山市农业干部学校;国家小麦工程技术研究中心
关键词:
水分亏缺;施N水平;N利用率;籽粒产量
摘  要:
采用盆栽方法研究了不同土壤水分下施N量对小麦生产力的影响 .结果表明 :在适宜土壤含水量下 ,适当增施N肥 ,土壤水分利用率提高 ,植株吸N量和小麦产量增加 ;施N量过大 ,N利用不经济 .不同土壤含水量对应的适宜施N量不同 .水分适宜的土壤对应的适宜施N量高于水分亏缺的
译  名:
Influence of N fertilizer on winter wheat productivity under soil water stress
作  者:
LIU Wan dai 1, WANG Hua cen 1, YANG Qing hua 2, et al.,(1 Center of National Wheat Engineering and Technology, Henan Zhenzhou 450002, China; 2 Henan Agricultural University, Henan Zhengzhou 450002, China)
关键词:
Water deficit; N level; Efficiency of N fertilizer; Yiel?
摘  要:
The influence of N fertilizer amounts on wheat production under different soil water contents was studied by using pot experiments. We found that the rate of soil water use increased and consequently more N was taken up by the plant and higher yields were obtained, when soil water contents were in a proper regime. However, if N fertilizer was over used , the application of N fertilizer was not economic. The N requirement was different, when soil water contents differed.ofNf

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