INFLUENCE OF WIND SPEED, NOZZLE PRESSURE AND FIELD BED SLOPE ON SOIL MOISTURE UNIFORMITY IN SPRINKLER IRRIGATION SYSTEM

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MONTAZER A.A.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2008 | Volume:15 | Issue:2 Page(s): 241-252

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Title

INFLUENCE OF WIND SPEED, NOZZLE PRESSURE AND FIELD BED SLOPE ON SOIL MOISTURE UNIFORMITY IN SPRINKLER IRRIGATION SYSTEM

Author(s)

MONTAZER A.A. | Issue Writer Certificate

Keywords

SOILD SET SPRINKLER IRRIGATION SYSTEMQ2

WIND SPEEDQ2

FIELD BED SLOPEQ1

NOZZLE PRESSUREQ3

SOIL MOISTUREQ2

SPRINKLER WATER UNIFORMITYQ2

Abstract

The aim of the present study is to investigate the effect of WIND SPEED, NOZZLE PRESSURE and FIELD BED SLOPE on SOIL MOISTURE uniformity in the solid set sprinkler irrigation system. For this purpose, 6 plots of 25´30 m with bed slope varying from 1.3 to 13.4% were selected in Bileh-Savar sprinkler irrigation network located in Mogan. For each plot, water application uniformity tests as well as moisture monitoring were carried out in three replications on different days and at different hours of the day. In each of the tests, water application depth and SOIL MOISTURE were measured at 121 and 100 spots in each plot, respectively. Nozzle discharge and operating pressure, WIND SPEED, relative humidity, and air temperature were measured throughout each experiment. Based on computations and with regard to the ranges of parameters variations, SOIL MOISTURE uniformity varied from 64 to 88%. A relationship between SPRINKLER WATER UNIFORMITY and field bed slop was developed. The sensitivity analysis of the relationship demonstrated that SOIL MOISTURE uniformity is more sensitive to SPRINKLER WATER UNIFORMITY than to FIELD BED SLOPE. The SPRINKLER WATER UNIFORMITY was also presented as a function of the dimensionless numbers of normalized WIND SPEED and sprinkler NOZZLE PRESSURE. The findings illustrated that SPRINKLER WATER UNIFORMITY is more sensitive to variations of WIND SPEED than to variations of nozzle operating pressure. Hence, the effect of WIND SPEED in soil water content uniformity is more than bed slope and NOZZLE PRESSURE parameters. The results also indicated that SOIL MOISTURE uniformity is greater than the SPRINKLER WATER UNIFORMITY.

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APA: Copy

MONTAZER, A.A.. (2008). INFLUENCE OF WIND SPEED, NOZZLE PRESSURE AND FIELD BED SLOPE ON SOIL MOISTURE UNIFORMITY IN SPRINKLER IRRIGATION SYSTEM. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 15(2), 241-252. SID. https://sid.ir/paper/9637/en

Vancouver: Copy

MONTAZER A.A.. INFLUENCE OF WIND SPEED, NOZZLE PRESSURE AND FIELD BED SLOPE ON SOIL MOISTURE UNIFORMITY IN SPRINKLER IRRIGATION SYSTEM. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2008;15(2):241-252. Available from: https://sid.ir/paper/9637/en

IEEE: Copy

A.A. MONTAZER, “INFLUENCE OF WIND SPEED, NOZZLE PRESSURE AND FIELD BED SLOPE ON SOIL MOISTURE UNIFORMITY IN SPRINKLER IRRIGATION SYSTEM,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 15, no. 2, pp. 241–252, 2008, [Online]. Available: https://sid.ir/paper/9637/en

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