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德意志民主共和国发明了一种新型的脉冲式微型喷头,适用于灌溉果园和条播作物。这种方法应用间歇喷水的原理,用安装在特种管子上的低压喷头将水喷洒在土壤表面,湿润宽度为1.2～1.5米,水量分布的偏差为±20％。流量能不断进行调节。管子中的压力可升高到0.15或0.25兆帕。系统的试
The German Democratic Republic invented a new pulsed micro-nozzle for irrigation of orchards and planted crops. This method uses the principle of intermittent water spraying, spraying water on the soil surface with a low-pressure nozzle mounted on a special tube with a wetting width of 1.2 to 1.5 meters and a deviation of water distribution of ± 20%. Flow can be constantly adjusted. The pressure in the tube can be raised to 0.15 or 0.25 MPa. System test