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Description: Extension programs for scheduling irrigations are in use in a number of irrigated areas, including those of Southern Alberta. The benefits of scheduling, as described by Wilcox and Brownlee (7) for the Okanagan Valley of British Columbia, derive primarily from the economics of water distribution and application. Jensen (3) and Jensen et al (4) stress the proper timing of water application as a primary advantage. In Southern Alberta a program of irrigation scheduling has been in operation since 1959. Evapotranspiration (Et) or crop water requirement is estimated from evaporation measurements using techniques generally described earlier (1, 2, 6). Ten years of research involving Et determination and correlation with concurrently measured evaporation preceded the introduction of the scheduling pro gram. A further evaluation of its longterm benefits and reliability was be gun at the Canada Department of Agriculture Irrigation Research Sub station, Vauxhall, Alberta in 1961. This paper records the effects of scheduling on yield and water requirements of crops grown in a 4-year rotation over an 8-year period.

Keywords: evaluation of a method of irrigation scheduling
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Citation: Hobbs, E. H. and K. K. Krogman 1970. EVALUATION OF A METHOD OF IRRIGATION SCHEDULING. Canadian Agricultural Engineering 12(1):25-27.
Volume: 12
Issue: 1
Pages 25 - 27
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Date: 1970
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Coverage: Canada
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