为确保玉米高产,在水资源不足的情况下,必须推广节水灌溉,其措施如下: 1.整修渠道,加铺塑料布。目前,地上渠道灌溉面积大、渗漏水严重,这是浪费水的重要原因。如果修建渠道,加厚夯实渠埂后铺一层塑料布,就能减少渗漏,可节约用水23—30%。 In order to ensure the high yield of corn, water-saving irrigation must be promoted under the condition of insufficient water resources. The measures are as follows: 1. Renovation of channels and spreading of plastic sheeting. At present, the irrigation area on the ground channel is large and the seepage water is serious, which is an important reason for wasting water. If the construction of channels, thick rammed trenches, shop after a layer of plastic sheeting, can reduce leakage, can save water 23-30%.