Show simple item record

dc.contributorUdeigweb, Theophilus K.en_US
dc.contributorClawson, Ernest L.en_US
dc.contributorRohli, Robert V.en_US
dc.contributorMiller, Donnieen_US
dc.creatorKumar, Vipanen_US
dc.identifier.citationVipan Kumar, Theophilus K. Udeigweb, Ernest L. Clawson, Robert V. Rohli, Donnie Miller. (1/7/2015). Crop water use and stage-specific crop coefficients for irrigated cottonin the mid-south, United States. Agricultural Water Management, 156, pp. 63-69.en_US
dc.description.abstractRegional variations in environmental conditions, cultivars, and management practices necessitate locallyderived tools for crop water use estimation and irrigation scheduling. A study was conducted in northeastLouisiana (mid-south US) aimed at estimating daily crop evapotranspiration (ETc) and reference evapo-transpiration (ETo) and thus, developing local crop coefficient (Kc) curves for irrigated upland cotton. ETcwas determined using paired weighing lysimeters installed near the middle of a 1-ha cotton field andplanted with cotton as in the rest of the surrounding field, while ETowas calculated using the Standard-ized Reference Evapotranspiration Equation (SREE) developed by the American Society of Civil Engineers(ASCE), using estimates of weather variables from a nearby standard reference weather station. Stage-specific Kcvalues averaged over 2 years were 0.42, 1.25 and 0.70 for initial, midseason, and end seasonstages of cotton, respectively. The initial-stage Kcvalue was approximately 26% lower than the Food andAgricultural Organization (FAO)-adjusted initial Kcvalue. The mid- and end-season Kcvalues obtained inthe study were approximately 6% and 11% greater, respectively, than the FAO-adjusted Kcvalues for thecorresponding stages. The observed differences among the local stage-specific Kcvalues (especially atinitial growth stage of cotton) and the FAO-adjusted initial Kcvalues could be attributed to regional vari-ations in environmental conditions, cultivars, and management practices. The ETcand Kcvalues obtainedfrom this study provide research-based information for future studies and the development of Kc-basedirrigation tools in this region.en_US
dc.publisherElsevier Massonen_US
dc.rightsAll right reserveden_US
dc.sourceAgricultural Water Management;156,(2015) Pagination 63,69en_US
dc.subjectreference evapotranspirationen_US
dc.subjectcrop coefficienten_US
dc.subjectcrop evapotranspirationen_US
dc.subjectweighing lysimeteraen_US
dc.titleCrop water use and stage-specific crop coefficients for irrigated cottonin the mid-south, United Statesen_US
dc.typeJournal Articleen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.centerMontana State Universityen_US
cg.contributor.centerLouisiana State University - LSU Louisianaen_US
cg.contributor.centerTexas Tech University - TTUen_US
cg.contributor.crpCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.funderCGIAR System Organization - CGIARen_US
cg.coverage.regionNorthern Americaen_US
dc.identifier.statusTimeless limited accessen_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

DSpace software copyright © 2002-2016  DuraSpace
MELSpace content providers and partners accept no liability to any consequence resulting from use of the content or data made available in this repository. Users of this content assume full responsibility for compliance with all relevant national or international regulations and legislation.
Theme by 
Atmire NV