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Evaluation of reference-crop evapo-transpiration by empirical method for predicting consumptive water use of a crop in a tropical wet-and-dry climate

Indian Agricultural Research Journals

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Title Evaluation of reference-crop evapo-transpiration by empirical method for predicting consumptive water use of a crop in a tropical wet-and-dry climate
 
Creator BELLOW, N J
 
Subject reference-crop evapo-transpiration, maize, water use, phenological stage, Zea mays
 
Description Reference-crop evapo-transprration (ETo) was determined according to 4 empirical methods using climatic data forthe different phenological stages ofmaize (Zea mays L.) grown during the rainy seasons of 1992-95. Evaluation of theempirical methods for the prediction of crop-consumptive water use (ETcrop) was based on the variability of derived ETo estimates and the capability of each estimate to reliably predict the (ETcrop) during the different phenological stages ofgrowth. The modified Penman method effered the best result with significant (P = 0.01) coefficient of determination of (ETcrop. Next to Penman is the modified pan-evauoration method. The modified radiation method was graded next and lastly the moditied Blaney-Criddle approach. The relative reliability of each method in terms of accuracy of bothmeasured and extrapolated meteorological data utilized is also discussed.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-05-17
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29917
 
Source The Indian Journal of Agricultural Sciences; Vol 67, No 6 (1997)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29917/13495
 
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