Integrating Sheep Grazing into Cereal-Based Crop Rotations: Spring Wheat Yields and Weed Communities

dc.contributor.author Miller, Zach
dc.contributor.author Menalled, Fabian
dc.contributor.author Lenssen, Andrew
dc.contributor.author Sainju, Upendra
dc.contributor.author Lenssen, Andrew
dc.contributor.author Hatfield, Patrick
dc.contributor.department Agronomy
dc.date 2018-02-16T07:14:53.000
dc.date.accessioned 2020-06-29T23:04:35Z
dc.date.available 2020-06-29T23:04:35Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2015
dc.date.issued 2015-01-01
dc.description.abstract <p>Crop diversification and integration of livestock into cropping systems may improve the economic and environmental sustainability of agricultural systems. However, few studies have examined the integration of these practices in the semiarid areas of the Northern Great Plains (NGP). A 3-yr experiment was conducted near Bozeman, MT, to compare the effects of crop rotation diversity and weed management practices imposed during fallow periods [sheep (<em>Ovis aries</em>) grazing, reduced tillage, and conventional tillage] on spring wheat (<em>Triticum aestivum</em> L.) yields and weed pressure. Management treatments were applied to replicated whole plots, within which the split-plots received crop rotation treatments [continuous spring wheat (CSW) and a 3-yr rotation of annual forage, fallow, and spring wheat, where each phase was present in each year]. In the initial 2 yr, the realized rotational treatments were wheat–fallow and CSW. In the final year, wheat was grown following all phases of the diversified rotation. Yields were similar among management treatments within the wheat–fallow and CSW rotations. Weed pressure was generally low but perennial weeds were more abundant in grazing-managed, wheat–fallow systems. The integration of livestock into the annual hay crop–fallow–spring wheat rotation was associated with a nearly 30-fold increase in weed pressure and a yield reduction of 51.2% compared to conventional management. The results suggest that although targeted sheep grazing is a viable alternative to conventional fallow management in CSW and wheat–fallow rotations, successful integration of livestock in diversified cropping systems requires more effective weed management practices.</p>
dc.description.comments <p>This article is from <em>Agronomy Journal</em>, 2015; 107(1); 104-112; doi: <a href="http://www.dx.doi.org/10.2134/agronj14.0086" target="_blank">10.2134/agronj14.0086</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/36/
dc.identifier.articleid 1037
dc.identifier.contextkey 7025711
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/36
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4709
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/36/2015_LenssenAW_IntegratingSHeepGrazing.pdf|||Fri Jan 14 23:46:26 UTC 2022
dc.source.uri 10.2134/agronj14.0086
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Plant Biology
dc.subject.disciplines Plant Breeding and Genetics
dc.subject.disciplines Plant Pathology
dc.subject.disciplines Weed Science
dc.title Integrating Sheep Grazing into Cereal-Based Crop Rotations: Spring Wheat Yields and Weed Communities
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 7f67ca95-722b-4dfd-8f49-56ff95980240
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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