Research Article
Jun 1982
Designing for Deficit Irrigation
Authors: Marshall J. English, M.ASCE, and Gary S. NussAuthor Affiliations
Publication: Journal of the Irrigation and Drainage Division
Volume 108, Issue 2
Abstract
Deficit irrigation is the practice of deliberately under-irrigating a crop. This practice may be preferable to full irrigation when water supplies are limited or irrigation costs are high. This paper investigates the merits of deficit irrigation for a farm in eastern Oregon. Two distinctly different irrigation systems were designed, one for full irrigation, the other for deficit irrigation. The costs and performances of these two systems are compared. It is determined that the system designed for deficit irrigation could lead to increased farm income while substantially reducing energy, water and capital requirements. These advantages would be gained by designing the deficit irrigation system for long intervals between irrigations and for low soil moisture uniformity. It is concluded that deficit irrigation can offer significant benefits under some circumstances, these benefits may be largely dependent on system design, and a comprehensive economics analysis is required to accurately assess the merits of a deficit irrigation scheme.
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Information
Published In
Journal of the Irrigation and Drainage Division
Volume 108 • Issue 2 • June 1982
Pages: 91 - 106
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Jun 1982
Published online: Feb 11, 2021
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Authors
Affiliations
Marshall J. English, M.ASCE
Asst. Prof., Dept. of Agricultural Engrg., Oregon State Univ., Corvallis, Oreg.
Gary S. Nuss
Grad. Research Asst., Dept. of Agricultural Engrg., Oregon State Univ., Corvallis, Oreg.
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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.
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.
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.