Winter cover crop effects on nitrate leaching in subsurface drainage as simulated by RZWQM-DSSAT

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Show simple item record Li, L Malone, RW Kasper, TC Jaynes, DB Saseendran, SA Thorp, KR Yu, Q Ahuja, LR 2010-05-28T09:45:57Z 2008-01
dc.identifier.citation American Society of Agricultural and Biological Engineers, 2008, 51 (5), pp. 1575 - 1583
dc.identifier.issn 0001-2351
dc.identifier.other C1UNSUBMIT en_US
dc.description.abstract Planting winter cover crops such as winter rye (Secale cereale L.) after corn and soybean harvest is one of the more promising practices to reduce nitrate loss to streams from tile drainage systems without negatively affecting production. Because availability of replicated tile-drained field data is limited and because use of cover crops to reduce nitrate loss has only been tested over a few years with limited environmental and management conditions, estimating the impacts of cover crops under the range of expected conditions is difficult. If properly tested against observed data, models can objectively estimate the relative effects of different weather conditions and agronomic practices (e.g., various N fertilizer application rates in conjunction with winter cover crops). In this study, an optimized winter wheat cover crop growth component was integrated into the calibrated RZWQM-DSSAT hybrid model, and then we compared the observed and simulated effects of a winter cover crop on nitrate leaching losses in subsurface drainage water for a corn-soybean rotation with N fertilizer application rates over 225 kg N ha-1 in corn years.
dc.publisher American Society of Agricultural and Biological Engineers
dc.subject NA, Agronomy & Agriculture
dc.subject NA; Agronomy & Agriculture
dc.title Winter cover crop effects on nitrate leaching in subsurface drainage as simulated by RZWQM-DSSAT
dc.type Journal Article
dc.parent American Society of Agricultural and Biological Engineers
dc.journal.volume 5
dc.journal.volume 51
dc.journal.number 5 en_US
dc.publocation United States en_US
dc.identifier.startpage 1575 en_US
dc.identifier.endpage 1583 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0701 Agriculture, Land and Farm Management
dc.personcode 109705 en_US
dc.personcode 0000051714 en_US
dc.personcode 0000051724 en_US
dc.personcode 0000051725 en_US
dc.personcode 0000051726 en_US
dc.personcode 0000051727 en_US
dc.personcode 107001 en_US
dc.personcode 0000051713 en_US
dc.percentage 100 en_US Agriculture, Land and Farm Management en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords en_US
dc.description.keywords NA en_US
dc.description.keywords NA
dc.staffid en_US
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3

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