Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4141/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
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ISSN | 0008-4271 |
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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