Brassica Cover Crops for Nitrogen Retention in the Maryland Coastal Plain

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dc.contributor.advisorWeil, Ray Ren_US
dc.contributor.authorDean, Jill Eliseen_US
dc.contributor.departmentPlant Science and Landscape Architecture (PSLA)en_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2006-09-12T05:49:49Z
dc.date.available2006-09-12T05:49:49Z
dc.date.issued2006-07-27en_US
dc.description.abstractThe Brassica cover crops, forage radish (Raphanus sativus L. cv 'Daichon'), oilseed radish (Raphanus sativus L. cv 'Adagio'), rape (Brassica napus L. cv 'Dwarf Essex'), and cereal rye (Secale cereale L. cv 'Wheeler') were examined for ability to decrease mineral N losses and influence organic N cycling at two Maryland Coastal Plain agricultural sites. Brassicas were similar or superior to rye regarding N uptake and soil profile NOsub3-N depletions (105-180 cm depth). Rape and rye maintained soil porewater NOsub3-N below 3 mg L to the minus 1 throughout spring while radish performed similarly on fine-textured soil, but caused porewater NOsub3-N > 10 mg L to the minus 1 on coarse-textured soil. Dissolved organic N averaged 51% of total N in porewater, but was unaffected by cover crops. Brassicas were as effective as rye in minimizing mineral N losses, but the role of cover crops in managing organic N was unclear.en_US
dc.format.extent8472333 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/3818
dc.language.isoen_US
dc.subject.pqcontrolledAgriculture, Soil Scienceen_US
dc.subject.pqcontrolledEnvironmental Sciencesen_US
dc.subject.pquncontrolledbrassicasen_US
dc.subject.pquncontrolledcover cropsen_US
dc.subject.pquncontrollednitrateen_US
dc.subject.pquncontrolledorganic Nen_US
dc.subject.pquncontrolledsoilen_US
dc.subject.pquncontrolledleachingen_US
dc.titleBrassica Cover Crops for Nitrogen Retention in the Maryland Coastal Plainen_US
dc.typeThesisen_US

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