Research Article
Jun 1972
Water Deficits—Irrigation Design and Programming
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VIEW THE REPLYAuthors: Robert M. Hagan and Ian J. StewartAuthor Affiliations
Publication: Journal of the Irrigation and Drainage Division
Volume 98, Issue 2
Abstract
Irrigation system design and economic analysis of proposed irrigation schemes require quantitative prediction of relationships between crop production and water use. In keeping with recent irrigation design practice, a comprehensive table is presented to update and add to earlier information defining the limits of allowable soil water depletion prior to irrigation of various crops for avoidance of yield reducing water deficits. Table values of soil water suction (bars) and available soil water depletion (percent) are given. A continuing research program on preseason irrigation programming techniques and development of water production functions for principle crops, relating yield reductions to water deficits are presented. Within this context, the importance of detailed knowledge of the capabilities of annual crops to utilize stored soil water via root system expansion is emphasized. An example of this type of information and its implications for irrigation design is presented from results of USBR funded research with corn at UC.
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Information
Published In
Journal of the Irrigation and Drainage Division
Volume 98 • Issue 2 • June 1972
Pages: 215 - 237
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Jun 1972
Published online: Feb 11, 2021
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Authors
Affiliations
Robert M. Hagan
Prof. of Water Science; Dept. of Water Sci. and Engrg., Univ. of Calif., Davis, CA
Ian J. Stewart
Post-Grad. Res. Water Scientist; Dept. of Water Science and Engrg., Univ. of Calif., Davis, CA
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.