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

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Show simple item record Hossain, I Epplin, F Krenzer, EG 2010-05-28T09:46:10Z 2003-01
dc.identifier.citation Agronomy Journal, 2003, 95 (5), pp. 1179 - 1188
dc.identifier.issn 0002-1962
dc.identifier.other C1UNSUBMIT en_US
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 fallwinter 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 19911992 through 19992000. The impact of alternative planting dates on dual-purpose wheat fallwinter 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 fallwinter forage yield, and only a 0.5% increase in expected test weight. Optimal planting date is sensitive to the relative value of wheat fallwinter 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
dc.publisher American Society of Agronomy, Inc
dc.relation.isbasedon 10.2134/agronj2003.1179
dc.title Planting date influence on dual-purpose winter wheat forage yield, grain yield and test weight
dc.type Journal Article
dc.parent Agronomy Journal
dc.journal.volume 5
dc.journal.volume 95
dc.journal.number 5 en_US
dc.publocation United States en_US
dc.identifier.startpage 1179 en_US
dc.identifier.endpage 1188 en_US BUS.Centre for Health Economics Research and Evaluation en_US
dc.conference Verified OK en_US
dc.for 0703 Crop and Pasture Production
dc.personcode 031002
dc.percentage 100 en_US Crop and Pasture Production 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 antipredator behavior; behavior; habitat use; mortality; Oncorhynchus mykiss; pre- dation; predation risk; predator-prey system; rainbow trout; salmonid. en_US
dc.description.keywords antipredator behavior
dc.description.keywords behavior
dc.description.keywords habitat use
dc.description.keywords mortality
dc.description.keywords Oncorhynchus mykiss
dc.description.keywords pre- dation
dc.description.keywords predation risk
dc.description.keywords predator-prey system
dc.description.keywords rainbow trout
dc.description.keywords salmonid.
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Business
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
utslib.collection.history Closed (ID: 3)

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