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	Effects of row spacing on soil water and water consumption of winter wheat under irrigated and rainfed conditions
	Zhou X. B. ; Chen Y. H. ; Ouyang Z.
	2011
关键词	evapotranspiration harvest index crop yield dry matter water use efficiency use efficiency grain-yield root-growth management system china india density region l.
英文摘要	The results of two seasons' work on soil water content (SWC), evapotranspiration (ET), total dry matter (TDM), and harvest index (HI) of crops under different row spacing (RS), as well as possible ways to improve water utilization, have been reported. Field experiments were carried out at the Experimental Farm of Shandong Agricultural University (36 degrees 09'N, 117 degrees 09'E) in 2006-2007 and 2007-2008. Four types of RS were treated under two different water conditions (rainfed and irrigated) and set up in a randomized plot design. RS did not exhibit any obvious effects on SWC during the study period. SWC was enhanced evidently by irrigation, especially in the 10-60 cm soil layer. Irrigation increased the ET of crop. At the seeding-jointing stage, the ET of RS14 was significantly higher than those during other treatments (P < 0.05). Irrigation increased yields, ET, and TDM, while it decreased water use efficiency and HI. There were significantly negative correlations between TDM and RS (P < 0.05). The HI of the rainfed crop was higher than that of the irrigated crop. Results showed that high yields of wheat could be achieved in northern China by reducing RS under uniform planting density conditions.
出处	Plant Soil and Environment
卷	57
期	3
页	115-121
收录类别	SCI
语种	英语
ISSN号	1214-1178
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22226]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhou X. B.,Chen Y. H.,Ouyang Z.. Effects of row spacing on soil water and water consumption of winter wheat under irrigated and rainfed conditions. 2011.

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