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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.date2015-07-01en_US
dc.date.accessioned2020-07-30T20:51:15Z
dc.date.available2020-07-30T20:51:15Z
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_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.identifier.urihttps://hdl.handle.net/20.500.11766/11456
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.formatPDFen_US
dc.languageenen_US
dc.publisherElsevier Massonen_US
dc.rightsAll right reserveden_US
dc.sourceAgricultural Water Management;156,(2015) Pagination 63,69en_US
dc.subjectfao-56en_US
dc.subjectreference evapotranspirationen_US
dc.subjectcrop coefficienten_US
dc.subjectcrop evapotranspirationen_US
dc.subjectasceen_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.centerMonsantoen_US
cg.contributor.crpCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.funderCGIAR System Organization - CGIARen_US
cg.date.embargo-end-dateTimelessen_US
cg.coverage.regionNorthern Americaen_US
cg.coverage.countryUSen_US
cg.contacttheo.udeigwe@ttu.eduen_US
cg.identifier.doihttps://dx.doi.org/10.1016/j.agwat.2015.03.022en_US
dc.identifier.statusTimeless limited accessen_US
mel.impact-factor4.021en_US


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