Quantitative analysis in regulation effects of water-fertilizer in semi-arid farmland

doi:10.1109/ICAE.2011.5943843

	Quantitative analysis in regulation effects of water-fertilizer in semi-arid farmland
	Li, Wenlong 1; Xu, Jing2,3 ; Liu, Zhiguang 4; Li, Zizhen 4
	2011
会议录名称	ICAE 2011 Proceedings: 2011 International Conference on New Technology of Agricultural Engineering
页码	474-477
出版者	IEEE Computer Society
摘要	Based on a field study in the semi-arid Loess plateau of China, the strategies of limited irrigation on farmland in dry-period and pre-sowing of normal-precipitation years are studied comparatively, and the difference effects on water use and grain yield of spring wheat with dry-period irrigation, pre-sowing irrigation and fertilizer application are examined. The results indicate that both dry-period irrigation and pre-sowing irrigation conduce to larger and deeper root systems, compared with the non-irrigated treatments. However, the promoting effect of dry-period irrigation is more significant under the same amount of supplemental irrigation and dry-period irrigation is more beneficial for the increase of grain yield. Furthermore, dry-period irrigation is more beneficial for improving WUE and grain yield of spring wheat than pre-sowing irrigation, and fertilizer application is more favorable for improving yield than without fertilizer application. The combination of dry-period irrigation and fertilizer application is the most efficient way for improving WUE and grain yield of spring wheat. © 2011 IEEE.
关键词	Drought Farms Fertilizers Grain (agricultural product) Dry periods Fertilizer applications Grain yield Semi arid Spring wheat Water use efficiency
DOI	10.1109/ICAE.2011.5943843
收录类别	EI
语种	英语
EI入藏号	20113114198674
文献类型	会议论文
条目标识符	http://ir.lzufe.edu.cn/handle/39EH0E1M/9827
专题	农林经济管理学院
作者单位	1.School of Pastoral Agriculture Science and Technology, Key Laboratory of Agriculture Grassland Agro-ecosystems, Lanzhou University, Lanzhou 730000, China; 2.School of Life Science, Lanzhou University, Lanzhou 730000, China; 3.School of Agriculture and Forestry Economics and Management, Lanzhou University of Finance and Economics, Lanzhou 730020, China; 4.School of Mathematics and Statistics, Lanzhou University, Lanzhou 730000, China
推荐引用方式 GB/T 7714	Li, Wenlong,Xu, Jing,Liu, Zhiguang,et al. Quantitative analysis in regulation effects of water-fertilizer in semi-arid farmland[C]:IEEE Computer Society,2011:474-477.