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Managing Cereal Rye Living Mulch in Snap Beans with Chemical Mowing and Preemergence Herbicides

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Title: Managing Cereal Rye Living Mulch in Snap Beans with Chemical Mowing and Preemergence Herbicides
Author: Buck, Elizabeth
Department: Department of Plant Agriculture
Program: Plant Agriculture
Advisor: Robinson, Darren
Abstract: Winter cereal rye (Secale cereale L.) can be used as an interseeded living mulch for integrated weed management in vegetables. Two aspects limit cereal rye living mulch utility: yield impeding crop interference and concurrent cereal rye and weed establishment. Micro-rates of quizalofop-p-ethyl herbicide applied postemergence limited cereal rye living mulch vigor via chemical mowing; the dose response depended upon rye stage at application. Chemical mowing failed to preserve snap bean yield and consistently limit weed biomass. Split and single quizalofop-p-ethyl application rates did not differ from the untreated rye control for weed control, snap bean yield, and cereal rye dry weight. Preemergence herbicide use could provide cereal rye with a temporal emergence advantage over annual weeds. Cereal rye tolerated the low-label rate of S-metolachlor, dimethenamid-p, pendimethalin, and EPTC applied preemergence. These results will inform the methodologies of future studies examining cereal rye living mulch use in vegetable systems.
Date: 2018-12
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
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Attribution-NonCommercial-NoDerivatives 4.0 International Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International