Assessment of emitter discharge in microirrigation system as affected by polluted water

被引：10

作者：

Ould Ahmed, Bouya Ahmed ^{[1
]}

Yamamoto, Tahei ^{[1
]}

Fujiyama, Hideyasu ^{[2
]}

Miyamoto, Koichi ^{[3
]}

机构：

[1] Tottori University, Arid Land Research Center, Tottori 680-0001

[2] Faculty of Agriculture, Tottori University, Tottori 680-0001

[3] Research Planner, National Institute for Rural Engineering, Tsukuba

来源：

| 2007年 / Kluwer Academic Publishers, Van Godewijckstraat 30, Dordrecht, 3311 GZ, Netherlands卷 / 21期

关键词：

Drip irrigation performance; Emitter clogging; Mist spray emitter;

D O I：

10.1007/s10795-007-9022-6

中图分类号：

学科分类号：

摘要：

A drip irrigation system has the advantage of maintaining high water content near the plant root. However, its performance depends on water quality as it may induce the emitter clogging. In the Tohaku National Irrigation Project, in western Japan, mist spray emitters are widely used for irrigation in the field and greenhouses for vegetable and orchard crops. Seven emitters of different types were evaluated for the variation in their discharge rate without filter. The statistical analysis of mean discharge ratio and the coefficient of variation of the performance of emitters along a lateral line in the field indicated that the mist spray emitters had the best performance for irrigation in Tohaku area, particularly the new emitters or 1-year old emitters. The results suggest that after using the emitter line for two irrigation seasons it should either be replaced in the third season or washed carefully if further used. © Springer Science+Business Media B.V. 2007.

引用

页码：97 / 107

页数：10

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