Performance of fixed classic sprinkler irrigation systems with portable sprinkler in Sonqor region in Kermanshah

Document Type : Original Article

Authors

1 bu ali sina university

2 bu ali sina

3 Department of Agricultural Engineering Research, Hamedan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization,

Abstract

In this study, 5 fixed classic sprinkler irrigation systems with portable sprinkler with cropping pattern of wheat, clover, alfalfa, potato and sunflower with two different patterns sprayer moveent were evaluated in the city of Sonqor, Kermanshah province. The discharge of sprinklers, spraying rate, water infiltration rate and infiltrated water depth showed that the water application efficiency, Christiansen coefficient and water distribution uniformity varied from between 32.7 to 70.3, 58 to 78 and 44.57 to 63 percent respectively. The application efficiency of low quarter of all systems were 29 to 45 percent and the potential efficiency of low quarter the three system 1, 3, 5 were 73.8, 70.6, 70 percent and system 2 and 4 were 49.16 and 29 percent respectively. Low efficiency and application efficiency of low quarter are due to wind and evaporation Losses that measured from the difference in the water output from the sprinklers with the water collected in the cans and deep percolation calculated. Inappropriate pressure, the use of multiple and different sprinklers, pressure and discharge variations were the main reasons of low indicators. The main problems of these systems are mismatch design with implementation, lack of adequate supervision on implementation and after it, inadequate information on soil condition, water requirement, productivity, operation management and rather than economic issues in selection of irrigation equipment and methods.

Keywords


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