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喷灌作为一种新的灌水技术,与传统的地面灌水技术相比,除具有增产,灌水效率高、适应性强、便于综合利用等优点外,节水是它突出优点之一。但是,水由喷头喷出后,被粉碎了的雨滴在降落至地面前会有一部分被蒸发掉或被风吹移到灌区之外,这一部分水的损失可用喷洒水利用系数来表征。喷洒水利用系数是指降落到地面上和作物上的有效水量与喷头喷出水量之比值,它的大
Sprinkler irrigation as a new technology, compared with the traditional ground irrigation technology, in addition to yield, irrigation efficiency, adaptability, ease of utilization, etc., water-saving is one of its outstanding advantages. However, after the water is sprayed from the spray head, the raindrops that have been crushed will be partially evaporated or blown out of the irrigation area before falling to the ground. The water loss can be characterized by the water spray coefficient. Sprinkler water utilization factor refers to the ground and crops on the ground to the effective amount of water and the nozzle discharge water ratio, its large