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软管滴灌是以塑料管上开设的小孔为灌水器的滴灌技术,由于它把毛管及灌水器合二为一,因而应用可靠、不堵塞,是目前保护地节水灌溉的基本形式。在北京市郊区已经推广了3000多亩。应该指出,软管滴灌是灌溉技术的一大进步,优越性十分明显。与沟灌相比,可降低大棚内空气相对湿度10％以上,由此,大大降低了植株发病率和延缓病害发生与蔓延时间。因湿度低、不积雾,使得采光好,增温快,5月份比沟灌平均地温提高1.1℃。根据试验,黄瓜、西红柿可增产17％～21％,增收10％以上。节水效
Hose drip irrigation is based on the plastic pipe to open the hole for the emitter drip irrigation technology, because it combines the capillary and emitter, so the application of reliable, non-clogging, is the basic form of water conservation irrigation. In the suburbs of Beijing has been promoted more than 3000 mu. It should be noted that hose drip irrigation technology is a big step forward, the advantages are obvious. Compared with furrow irrigation, the relative humidity of air in the greenhouse can be reduced by more than 10%, thereby greatly reducing the incidence of plants and slowing down the occurrence and spread of diseases. Due to low humidity, no fogging, making good lighting, warming fast, in May than the average furrow temperature increased 1.1 ℃. According to the test, cucumber, tomato yield increase of 17% to 21%, an increase of 10%. Water saving effect