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近年来我国北方地区工农业用水量迅速增长,水资源不足的现象日益突出。农田管道灌溉正是在这种形势下发展起来的一种新型地面灌溉技术,它具有节水、节能、成本低、效益高等特点,因而在华北各省已广泛应用。目前仅山东省各种输水管道总长已发展到2080万米,其中地面塑料软管总长达1893万米。与此相应,各种新型管材相继出现,其中以软管的研制及推广最为迅速。由于软
In recent years, the water used in agriculture and industry in the northern part of our country has been growing rapidly. The phenomenon of insufficient water resources has become increasingly prominent. Farmland pipeline irrigation is a new type of surface irrigation technology developed in this situation. It has the characteristics of water saving, energy saving, low cost and high efficiency. Therefore, it has been widely used in various provinces of North China. At present, only the total length of various water pipelines in Shandong Province has grown to 20.8 million meters, of which the total length of plastic hose on the ground is 18.93 million meters. Correspondingly, a variety of new pipe have appeared, of which the development and promotion of the hose is the most rapid. Because of soft