Effect of nitrogen management on yield and water use efficiency of rainfed wheat and maize in Northwest China

CORC > 水土保持研究所 > 中国科学院水利部水土保持研究所 > 水保所知识产出(1956-2013)

	Effect of nitrogen management on yield and water use efficiency of rainfed wheat and maize in Northwest China
	Dang Ting-Hui ; Cai Gui-Xin ; Guo Sheng-Li
刊名	PEDOSPHERE
	2006
卷号	16 期号:4 页码:495-504
关键词	wheat maize N-15 studies water use efficiency yield
通讯作者	Cai, GX
英文摘要	A field experiment with four treatments and four replicates in a randomized complete block design was conducted at the Changwu Experimental Station in Changwu County, Shaanxi Province, of Northwest China from 1998 to 2002. The local cropping sequence of wheat, wheat-beans, maize, and wheat over the 4-year period was adopted. A micro-plot study using N-15-labelled fertilizer was carried out to determine the fate of applied N fertilizer in the first year. When N fertilizer was applied wheat (years 1, 2 and 4) and maize (year 3) grain yield increased significantly (P < 0.05) (> 30%), with no significant yield differences in normal rainfall years (Years 1, 2 and 3) for N application at the commonly application rate and at 2/3 of this rate. Grain yield of wheat varied greatly between years, mainly due to variation in annual rainfall. Results of N-15 studies on wheat showed that plants recovered 36.6%-38.4% of the N applied, the N remained in soil (0-40 cm) ranged from 29.2% to 33.6%, and unaccounted-for N was 29.5%-34.2%. The following crop (wheat) recovered 2.1%-2.8% of the residual N from N applied to the previous wheat crop with recovery generally decreasing in the subsequent three crops (beans, maize and wheat).
收录类别	SCI
语种	英语
公开日期	2012-06-15
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/4905]
专题	水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式 GB/T 7714	Dang Ting-Hui,Cai Gui-Xin,Guo Sheng-Li. Effect of nitrogen management on yield and water use efficiency of rainfed wheat and maize in Northwest China[J]. PEDOSPHERE,2006,16(4):495-504.
APA	Dang Ting-Hui,Cai Gui-Xin,&Guo Sheng-Li.(2006).Effect of nitrogen management on yield and water use efficiency of rainfed wheat and maize in Northwest China.PEDOSPHERE,16(4),495-504.
MLA	Dang Ting-Hui,et al."Effect of nitrogen management on yield and water use efficiency of rainfed wheat and maize in Northwest China".PEDOSPHERE 16.4(2006):495-504.