Planting date influence on dual-purpose winter wheat forage yield, grain yield and test weight

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dc.contributor.author Hossain, Ishrat en_US
dc.contributor.author Epplin, Francis en_US
dc.contributor.author Krenzer, Eugene en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:46:10Z
dc.date.available 2010-05-28T09:46:10Z
dc.date.issued 2003 en_US
dc.identifier 2007003492 en_US
dc.identifier.citation Hossain Ishrat, Epplin Francis, and Krenzer Eugene 2003, 'Planting date influence on dual-purpose winter wheat forage yield, grain yield and test weight', American Society of Agronomy, Inc, vol. 95, no. 5, pp. 1179-1188. en_US
dc.identifier.issn 0002-1962 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/8897
dc.description.abstract The use of winter wheat (Triticum aestivum L.) as a dual-purpose forage and grain crop is important to the agricultural economies of the Southern Great Plains of the USA. Planting date is an important management factor in determining the economic success of a dual-purpose winter wheat enterprise. The overall objective of the research reported in this paper is to determine the economic optimal planting date for dual-purpose winter wheat production. The specific objectives are to determine wheat fall?winter forage yield, wheat grain yield, and wheat test weight response to planting date for dual-purpose winter wheat production. Field studies were conducted in north central Oklahoma from 1991?1992 through 1999?2000. The impact of alternative planting dates on dual-purpose wheat fall?winter forage yield, grain yield, and test weight was estimated. Estimated response functions illustrate that delaying the planting date from 10 to 30 September resulted in an 18% increase in expected grain yield, a 68% decrease in expected fall?winter forage yield, and only a 0.5% increase in expected test weight. Optimal planting date is sensitive to the relative value of wheat fall?winter forage and wheat grain, but not sensitive to wheat test weight discount schedules. When the value of wheat forage is high relative to the value of grain, it is more profitable to plant early to increase expected forage yield. Alternatively, when the value of grain is high relative to the value of forage, later planting generates greater net returns en_US
dc.language en_US
dc.publisher American Society of Agronomy, Inc en_US
dc.relation.isbasedon en_US
dc.relation.isbasedon http://dx.doi.org/10.2134/agronj2003.1179 en_US
dc.title Planting date influence on dual-purpose winter wheat forage yield, grain yield and test weight en_US
dc.parent Agronomy Journal en_US
dc.journal.volume 95 en_US
dc.journal.number 5 en_US
dc.publocation United States en_US
dc.identifier.startpage 1179 en_US
dc.identifier.endpage 1188 en_US
dc.cauo.name BUS.Centre for Health Economics Research and Evaluation en_US
dc.conference Verified OK en_US
dc.for 070300 en_US
dc.personcode 031002 en_US
dc.personcode 0000033929 en_US
dc.personcode 0000045650 en_US
dc.percentage 100 en_US
dc.classification.name Crop and Pasture Production en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords antipredator behavior; behavior; habitat use; mortality; Oncorhynchus mykiss; pre- dation; predation risk; predator-prey system; rainbow trout; salmonid. en_US


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