There was obvious correlation between Alfalfa productivity and irrigation volume ,the math model was: Y = 0.9025Q1.4732 （R2 = 0.94）, there are still large room for alfalfa irrigated productivity ,the reality productivity depended on the measures of water and fertilizer.
灌水量与苜蓿产量之间有明显的相关关系,其数学模型为:Y=0.9025Q1.4732 (R2=0.94),灌溉苜蓿饲草料地生产力尚有较大的开发空间,现实产量的获得极大地依赖于人为水肥措施。
参考来源 - 希拉穆仁草原退化特征及其受损恢复机理研究·2,447,543篇论文数据，部分数据来源于NoteExpress
One of the advantages of modern irrigation methods is that they alone can save 20-30 percent of the present volume of wasted irrigation water.
现代灌溉方法的优点之一是，仅凭它们就可以节省目前灌溉用水浪费量的20%-30%。
Last month officials called for a cut of nearly 40% in the volume of river water they take for irrigation.
就在上月，当地官方宣布要减少约近40%的用于农田灌溉用水。
Israel makes widespread use of low-volume irrigation such as drip-feed and micro-sprinklers, which is expensive.
以色列在正在大力推广它的节水技术，如滴溉和微喷头技术，不过它的还比较贵。
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