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Soil Water and Water-Use Efficiency in No-Tillage and Sweep Tillage Winter Wheat Production in Northeastern Oregon

2015; Wiley; Volume: 79; Issue: 4 Linguagem: Inglês

10.2136/sssaj2014.12.0494

ISSN

1435-0661

Autores

John D. Williams, Stewart B. Wuest, D. S. Robertson,

Tópico(s)

Soil erosion and sediment transport

Resumo

Soil Science Society of America JournalVolume 79, Issue 4 p. 1206-1212 Soil & Water Management & Conservation Soil Water and Water-Use Efficiency in No-Tillage and Sweep Tillage Winter Wheat Production in Northeastern Oregon John D. Williams, Corresponding Author John D. Williams [email protected] Columbia Plateau Conservation Research Center, USDA Agricultural Research Service, P.O. Box 370, Pendleton, OR, 97801Corresponding author ([email protected]).Search for more papers by this authorStewart B. Wuest, Stewart B. Wuest Columbia Plateau Conservation Research Center, USDA Agricultural Research Service, P.O. Box 370, Pendleton, OR, 97801Search for more papers by this authorDavid S. Robertson, David S. Robertson Columbia Plateau Conservation Research Center, USDA Agricultural Research Service, P.O. Box 370, Pendleton, OR, 97801Search for more papers by this author John D. Williams, Corresponding Author John D. Williams [email protected] Columbia Plateau Conservation Research Center, USDA Agricultural Research Service, P.O. Box 370, Pendleton, OR, 97801Corresponding author ([email protected]).Search for more papers by this authorStewart B. Wuest, Stewart B. Wuest Columbia Plateau Conservation Research Center, USDA Agricultural Research Service, P.O. Box 370, Pendleton, OR, 97801Search for more papers by this authorDavid S. Robertson, David S. Robertson Columbia Plateau Conservation Research Center, USDA Agricultural Research Service, P.O. Box 370, Pendleton, OR, 97801Search for more papers by this author First published: 05 June 2015 https://doi.org/10.2136/sssaj2014.12.0494Citations: 4 Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. This research funded by USDA Agricultural Research Service national program Climate Change, Soils, and Emissions (NP#212). USDA is an equal opportunity provider and employer. All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The productivity of rainfed winter wheat (WW, Triticum aestivum L.) depends on the efficient capture and storage of precipitation. In the semi-arid Pacific Northwest (PNW), USA, soil water is managed through a 14-mo fallow period to establish wheat before winter and maximize growth potential the following spring. The effects of soil management on soil water storage were investigated on a Walla Walla silt loam soil (coarse-silty, mixed, superactive, mesic Typic Haploxerolls). The treatments were untilled chemical fallow (CF), versus a one-pass undercutter fallow (UF) in 2-yr WW–fallow rotations. These were compared with an annually cropped no-till WW (ANT). Measured from 2007 through 2014, CF had significantly more soil water than UF. Annually cropped no-till WW had less soil water than CF or UF for the duration of the research. These results were not reflected in precipitation capture efficiency. Annualized crop yield was significantly greater in ANT than in CF or UF, which were not significantly different. This resulted in water-use efficiency (WUE) being 30% greater in ANT than CF or UF. Unlike reports from drier zones of the PNW, it appears that CF and even annual wheat production may be ways to maximize WUE by wheat. REFERENCES 1Chen, C., and Payne, W.A.. 2001. Measured and modeled unsaturated hydraulic conductivity of a Walla Walla silt loam. Soil Sci. Soc. Am. 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