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DOI	10.1016/j.still.2020.104823
	Soil water dynamics under a warm-season cover crop mixture in continuous wheat
	Mubvumba, Partson; DeLaune, Paul B.; Hons, Frank M.
通讯作者	Mubvumba, P (corresponding author), USDA ARS, Crop Prod Syst Res Unit, POB 350, Stoneville, MS 38776 USA.
来源期刊	SOIL & TILLAGE RESEARCH
ISSN	0167-1987
EISSN	1879-3444
出版年	2021
卷号	206
英文摘要	Cover crop technology can potentially benefit monoculture wheat systems in the semi-arid US Southern Great Plains, but the biggest hurdle in such regions where evapotranspiration exceeds precipitation is soil water. Cover crop impact on soil water use and availability is a major cause for concern in water-limited environments. The objective of this study was to evaluate the impact of cover crops, grazing, and intercrops on soil water dynamics under rainfed conditions. Seven treatments were evaluated, including conventional tillage (CT) and combinations of no-tillage (NT) with a cover crop mixture, grazed cover crops, and/or cash crop intercropping. The three-year study was conducted on a long-term NT continuous wheat system in the Texas Rolling Plains. Despite dry periods, the cover crop mixture produced 2141 to 3503 kg ha(-1) dry herbage mass. Stored soil water was significantly lower within 60 days after planting for cover crop compared to no cover crop treatments. Stored soil water was 22-26% lower in cover crop plots at time of termination. In the final two years of the study, the positive change in stored soil water from cover crop termination to wheat planting was two to four times greater for cover crop treatments compared to non-cover crop treatments. The greater infiltration and water capture after termination has the potential to make up for the loss in soil water that cover crops used.
英文关键词	Cover crops Soil water Infiltration Wheat
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000595930700006
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/2XILL650/348213
作者单位	[Mubvumba, Partson] USDA ARS, Crop Prod Syst Res Unit, POB 350, Stoneville, MS 38776 USA; [DeLaune, Paul B.] Texas A&M AgriLife Res, 11708 HWY 70 S, Vernon, TX 76384 USA; [Hons, Frank M.] Texas A&M Univ, 2474 TAMU, College Stn, TX 77843 USA
推荐引用方式 GB/T 7714	Mubvumba, Partson,DeLaune, Paul B.,Hons, Frank M.. Soil water dynamics under a warm-season cover crop mixture in continuous wheat[J],2021,206.
APA	Mubvumba, Partson,DeLaune, Paul B.,&Hons, Frank M..(2021).Soil water dynamics under a warm-season cover crop mixture in continuous wheat.SOIL & TILLAGE RESEARCH,206.
MLA	Mubvumba, Partson,et al."Soil water dynamics under a warm-season cover crop mixture in continuous wheat".SOIL & TILLAGE RESEARCH 206(2021).