Arid
DOI10.4141/CJSS2013-016
Water use efficiency of spring wheat in the semi-arid Canadian prairies: Effect of legume green manure, type of spring wheat, and cropping frequency
Kroebel, R.1; Lemke, R.2; Campbell, C. A.3; Zentner, R.4; McConkey, B.4; Steppuhn, H.4; De Jong, R.3; Wang, H.4
通讯作者Kroebel, R.
来源期刊CANADIAN JOURNAL OF SOIL SCIENCE
ISSN0008-4271
EISSN1918-1841
出版年2014
卷号94期号:2页码:223-235
英文摘要

In the semi-arid Canadian prairie, water is the main determinant of crop production; thus its efficient use is of major agronomic interest. Previous research in this region has demonstrated that the most meaningful way to measure water use efficiency (WUE) is to use either precipitation use efficiency (PUE) or a modified WUE that accounts for the inefficient use of water in cropping systems that include summer fallow. In this paper, we use these efficiency measures to determine how cropping frequency, inclusion of a legume green manure, and the type of spring wheat [high-yielding Canada Prairie Spring (CPS) vs. Canada Western Red Spring (CWRS)] influence WUE using 25 yr of data (1987-2011) from the "New Rotation’’ experiment conducted at Swift Current, Saskatchewan. This is a well-fertilized study that uses minimum and no-tillage techniques and snow management to enhance soil water capture. We compare these results to those from a 39-yr "Old Rotation’’ experiment, also at Swift Current, which uses conventional tillage management. Our results confirmed the positive effect on WUE of cropping intensity, and of CPS wheat compared with CWRS wheat, while demonstrating the negative effect on WUE of a green manure crop in wheat-based rotations in semiarid conditions. Furthermore, we identified a likely advantage of using reduced tillage coupled with water conserving snow management techniques for enhancing the efficiency of water use.


英文关键词Water use efficiency precipitation use efficiency legume green manure spring wheat summer fallow
类型Article
语种英语
国家Canada
收录类别SCI-E
WOS记录号WOS:000349146900010
WOS关键词BROWN SOIL ZONE ; NORTHERN GREAT-PLAINS ; SOUTHWESTERN SASKATCHEWAN ; LATENT EVAPORATION ; FALLOW FREQUENCY ; SUMMER FALLOW ; SYSTEMS ; YIELD ; FERTILIZER ; NITROGEN
WOS类目Soil Science
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/181263
作者单位1.Agr & Agri Food Canada, Lethbridge Res Ctr, Lethbridge, AB T1J 4B1, Canada;
2.Agr & Agri Food Canada, Saskatoon Res Ctr, Saskatoon, SK S7N 5A8, Canada;
3.Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C6, Canada;
4.Agr & Agri Food Canada, Semiarid Prairie Agr Res Ctr, Swift Current, SK S9H 3X2, Canada
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Kroebel, R.,Lemke, R.,Campbell, C. A.,et al. Water use efficiency of spring wheat in the semi-arid Canadian prairies: Effect of legume green manure, type of spring wheat, and cropping frequency[J],2014,94(2):223-235.
APA Kroebel, R..,Lemke, R..,Campbell, C. A..,Zentner, R..,McConkey, B..,...&Wang, H..(2014).Water use efficiency of spring wheat in the semi-arid Canadian prairies: Effect of legume green manure, type of spring wheat, and cropping frequency.CANADIAN JOURNAL OF SOIL SCIENCE,94(2),223-235.
MLA Kroebel, R.,et al."Water use efficiency of spring wheat in the semi-arid Canadian prairies: Effect of legume green manure, type of spring wheat, and cropping frequency".CANADIAN JOURNAL OF SOIL SCIENCE 94.2(2014):223-235.
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