Research Article
Sep 1970
Predicting Irrigation Requirements of Crops
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VIEW THE REPLYAuthors: Wilfredo P. David and Edward A. HilerAuthor Affiliations
Publication: Journal of the Irrigation and Drainage Division
Volume 96, Issue 3
Abstract
A continuous soil moisture accounting model based on soil moisture depletion equations was developed. The model was adapted to an 18.6-acre experimental watershed and was used to estimate the monthly and seasonal irrigation requirements of cotton and grain sorghum. The distributions of the irrigation requirements of both crops as based on a 30-yr sample were found to be normal. Weekly rainfall probabilities for the watershed were calculated from a 30-yr sample using the incomplete gamma density function. The use of weekly rainfall probabilities in irrigation planning is shown.
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Published In
Journal of the Irrigation and Drainage Division
Volume 96 • Issue 3 • September 1970
Pages: 241 - 255
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Sep 1970
Published online: Feb 11, 2021
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Authors
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Wilfredo P. David
Research Assoc., Dept. of Agricultural Engrg., Iowa State Univ., Ames, Iowa
Edward A. Hiler
Assoc. Prof., Dept. of Agricultural Engrg., Texas A…M Univ., College Station, Tex
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