Drainage water quality impacts of agricultural management practices

dc.contributor.author Helmers, Matthew
dc.contributor.author Helmers, Matthew
dc.contributor.author Kanwar, Ramesh
dc.contributor.author Mallarino, Antonio
dc.contributor.author Kanwar, Rameshwar
dc.contributor.department Leopold Center for Sustainable Agriculture
dc.date 2018-02-17T11:34:48.000
dc.date.accessioned 2020-06-30T05:50:16Z
dc.date.available 2020-06-30T05:50:16Z
dc.date.embargo 2016-01-28
dc.date.issued 2010-01-01
dc.description.abstract <p>Investigators analyzed the impacts of liquid swine manure application, tillage, rotation and cover crops on dissolved nutrient loss in subsurface drainage. The project took place at the ISU Northeast Research Farm near Nashua. Tile drainage water samples were collected weekly for nitrate and dissolved-reactive P analysis during 2009 and 2010. Nitrate-N concentrations were highest under continuous corn receiving swine manure every year compared to other treatments. Corn-soybean rotations that received manure only before corn had lower nitrate-N concentrations compared to corn-soybean rotations that received manure before both crops. During these three years, which were not ideal for cover crop growth due to cold wet springs, nitrate concentrations in tile water from the corn-soybean system without a cover crop were similar to or slightly higher than concentrations from the corn-soybean system with a cover crop.</p>
dc.identifier archive/lib.dr.iastate.edu/leopold_grantreports/365/
dc.identifier.articleid 1359
dc.identifier.contextkey 8061662
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath leopold_grantreports/365
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/53191
dc.source.bitstream archive/lib.dr.iastate.edu/leopold_grantreports/365/2010_HelmersMJ_DrainageWaterQuality.pdf|||Fri Jan 14 23:48:04 UTC 2022
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Water Resource Management
dc.subject.keywords Agricultural and Biosystems Engineering
dc.subject.keywords Nutrient management
dc.subject.keywords Water quality quantity and management
dc.title Drainage water quality impacts of agricultural management practices
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isAuthorOfPublication 5210e67e-b8da-4e17-be3f-843a09381196
relation.isOrgUnitOfPublication 88291ed1-41b3-483d-a829-877aee2e3d1d
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