使用塑料管道输水,是农田灌溉中输水方式的一项重大改进,经济效益显著,深受农民欢迎。塑料管道输水的优点,一是节水节能。由于减少了渗漏和蒸发,一般可比土垄沟输水少损失水量30%左右。用塑料管道输水属微压管道输水,对同一井泵而言,配接管道比不配接管道,水泵出水量略有减少。但只要配套合理,水泵减少的出水量比用土垄沟输水的渗漏量要小得多,所以用管道输水还可节能。据测算,软塑管输水比土垄沟输水节水26.5%,吨水可节油10%。二是投资不多,软塑料 The use of plastic pipes for water conveyance is a major improvement in water conveyance in farmland irrigation and has obvious economic benefits and is welcomed by peasants. The advantages of plastic pipe water, first, water saving. Due to reduced leakage and evaporation, generally less water loss than ditches about 30% loss of water. Pipeline with plastic pipe is a micro-pressure water pipelines, for the same well pump, with the pipe is not connected with the pipe, the pump slightly reduced the amount of water. However, as long as the matching is reasonable, the amount of water discharged by the pump is much smaller than the leakage by the earth and furrow, so water can be saved by using pipelines. It is estimated that soft plastic pipe water than ditch water transport 26.5% water, tons of water can save 10%. Second, little investment, soft plastic