Arid
DOI10.4141/CJSS2011-055
Nitrogen and phosphorus effects on water use efficiency of spring wheat grown in a semi-arid region of the Canadian prairies
Kroebel, R.1; Campbell, C. A.1; Zentner, R. P.2; Lemke, R.3; Steppuhn, H.2; Desjardins, R. L.1; De Jong, R.1
通讯作者Kroebel, R.
来源期刊CANADIAN JOURNAL OF SOIL SCIENCE
ISSN0008-4271
出版年2012
卷号92期号:4页码:573-587
英文摘要

Krobel, R., Campbell, C. A., Zentner, R. P., Lemke, R., Steppuhn, H., Desjardins, R. L. and De Jong, R. 2012. Nitrogen and phosphorus effects on water use efficiency of spring wheat grown in a semi-arid region of the Canadian prairies. Can. J. Soil Sci. 92: 573-587. Water use efficiency (WUE) has often been analyzed for semiarid environments, but fallow-containing cropping systems were assessed inappropriately. Further, these short-term studies are unlikely to correctly assess weather variability impacts in such environments. We assessed the impact of fertilizer N and P on water use efficiency (WUE) and precipitation use efficiency (PUE) of spring wheat (Triticum aestivum L.) from a 39-yr long-term crop rotation study in semi-arid southwestern Saskatchewan. In the rotation experiment, continuous wheat (Cont W) with N + P or P fertilizer only, and fallow-wheat-wheat (F-W-W) with N + P, P only, or N only were studied. We calculated WUE using: (i) Yield (Y)/[water use (WU)/potential water use (PET)]; (ii) Y/WU; (iii) Y/WU with a fallow phase element added; and (iv) Y/harvest-to-harvest precipitation (PUE). The WUEs in the rotation experiment were generally greater for treatments with N + P fertilizer, and greatest after an increase of N application coupled with favourable soil water conditions in the final decades of this study. In cases (i) and (ii), WUE for F-W-W was greater than for the Cont W-treatment. In case (iii), the WUEs were 5.7, 4.5, 3.9, 3.6, and 3.6 kg ha I mm I water for Cont W (N + P), Cont W (P), F-W-W (N + P), F-W-W (P), and F-W-W (N), respectively. For PUE [case (iv)] the values were 4.0, 3.1, 3.4, 3.0, and 2.9, respectively. We concluded that case (ii) was most appropriate for continuous cropping and case (iii) for systems including fallow, while case (iv) was usable in general.


英文关键词Water use efficiency precipitation use efficiency fertilizer 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:000305102800001
WOS关键词PRECIPITATION USE EFFICIENCY ; TERM CROP-ROTATION ; SOUTHWESTERN SASKATCHEWAN ; MOISTURE USE ; SOIL-MOISTURE ; FERTILIZER-N ; LATENT EVAPORATION ; DRYLAND WHEAT ; YIELD ; STUBBLE
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/2XILL650/171697
作者单位1.Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C6, Canada;
2.Agr & Agri Food Canada, Semiarid Prairie Agr Res Ctr, Swift Current, SK S9H 3X2, Canada;
3.Agr & Agri Food Canada, Saskatoon Res Ctr, Saskatoon, SK S7N 0X2, Canada
推荐引用方式
GB/T 7714
Kroebel, R.,Campbell, C. A.,Zentner, R. P.,et al. Nitrogen and phosphorus effects on water use efficiency of spring wheat grown in a semi-arid region of the Canadian prairies[J],2012,92(4):573-587.
APA Kroebel, R..,Campbell, C. A..,Zentner, R. P..,Lemke, R..,Steppuhn, H..,...&De Jong, R..(2012).Nitrogen and phosphorus effects on water use efficiency of spring wheat grown in a semi-arid region of the Canadian prairies.CANADIAN JOURNAL OF SOIL SCIENCE,92(4),573-587.
MLA Kroebel, R.,et al."Nitrogen and phosphorus effects on water use efficiency of spring wheat grown in a semi-arid region of the Canadian prairies".CANADIAN JOURNAL OF SOIL SCIENCE 92.4(2012):573-587.
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