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Irrigation and Drainage Systems
Alchanatis, V., Faculty of Agricultural Engineering, Technion, Haifa, Israel
Amir, I., Faculty of Agricultural Engineering, Technion, Haifa, Israel
A new coefficient, the pattern fit coefficient for water application, Pa, is introduced. It expresses the differences between an applied and any predetermined water pattern. The efficiency of many irrigation systems and methods are evaluated by comparing them to a uniform pattern. In several cases, however, strip patterns are more efficient and, therefore, preferred (e.g. small row crops, early growing stages). Fortunately strip patterns can be applied by recently developed irrigation systems such as linear move irrigation machines. The necessity to evaluate these patterns is the reason and the justification for the new coefficient. This paper presents the mathematical background and several uses of Pa as well as its interpretation in terms of availability access and shortage of water within the wetted area of whatever shape. © 1990 Kluwer Academic Publishers.
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A pattern fit coefficient for water application
4
Alchanatis, V., Faculty of Agricultural Engineering, Technion, Haifa, Israel
Amir, I., Faculty of Agricultural Engineering, Technion, Haifa, Israel
A pattern fit coefficient for water application
A new coefficient, the pattern fit coefficient for water application, Pa, is introduced. It expresses the differences between an applied and any predetermined water pattern. The efficiency of many irrigation systems and methods are evaluated by comparing them to a uniform pattern. In several cases, however, strip patterns are more efficient and, therefore, preferred (e.g. small row crops, early growing stages). Fortunately strip patterns can be applied by recently developed irrigation systems such as linear move irrigation machines. The necessity to evaluate these patterns is the reason and the justification for the new coefficient. This paper presents the mathematical background and several uses of Pa as well as its interpretation in terms of availability access and shortage of water within the wetted area of whatever shape. © 1990 Kluwer Academic Publishers.
Scientific Publication
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