Field-scale experiments reveal persistent yield gaps in low-input and organic cropping systems
نویسندگان
چکیده
منابع مشابه
Field-scale experiments reveal persistent yield gaps in low-input and organic cropping systems.
Knowledge of production-system performance is largely based on observations at the experimental plot scale. Although yield gaps between plot-scale and field-scale research are widely acknowledged, their extent and persistence have not been experimentally examined in a systematic manner. At a site in southwest Michigan, we conducted a 6-y experiment to test the accuracy with which plot-scale cro...
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Published in Agron. J. 103:673–684 (2011) Published online 9 Mar 2011 doi:10.2134/agronj2010.0420 Copyright © 2011 by the American Society of Agronomy, 5585 Guilford Road, Madison, WI 53711. 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 retr...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2017
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1612311114