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滴灌,是通过将水流增压过滤,再经过管道、管件和滴头减压后变成无压水,以点滴方式缓慢地连续不断地注入农作物根系最发达的土壤中使其经常地保持最优含水状态的灌溉方式,它为农作物生长发育提供了良好的水、肥、气、热以及微生物活动的有利条件。滴灌技术具有省水、省肥、效率高、增产幅度大、产值高等优点。适宜在干旱缺水山区和经济作物区发展。1978～1981年我们在西郊公社吉祥大队,连续四年进行了蔬菜滴灌试点工作,现将情况总结如下:一、滴灌系统的组合形式
Drip irrigation, through the pressurized water flow filtration, and then through the pipe, tube and drip decompression into pressureless water, drip drip slowly and continuously into the roots of crop roots in the most developed soil to maintain its optimal Water-based irrigation methods, which provide favorable conditions for crop growth and development of water, fertilizer, gas, heat and microbial activity. Drip irrigation technology has the advantages of water saving, fertilizer saving, high efficiency, large yield increase and high output value. Suitable for drought and water mountainous areas and economic crop area development. From 1978 to 1981, we conducted a pilot project of vegetable drip irrigation for the fourth year in a row in the commune Jixiang Brigade in the western suburbs. The current situation is summarized as follows: I. Combination of drip irrigation systems