[名词解释] 灌溉水源(water sources for irrigation)
[名词解释] 灌溉(irrigation)
[名词解释] 水利计算(analysis of irrigation water resources)
[名词解释] 节水灌溉
[问答题] 发展节水灌溉
[问答题] 节水灌溉类型
[名词解释] 节水灌溉制度
[单选题]地面灌溉中,为了节水应采用()灌溉?A .漫灌B .大畦灌溉C .小畦灌溉D .沟灌
[问答题] 节水灌溉有哪些方式?
[多选题]节水灌溉的方法有()。A.点灌B.漫灌C.喷灌D.滴灌