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为了推广大棚蔬菜膜下微灌技术 ,通过对黄瓜种植的膜下微灌与沟灌的对比试验 ,就膜下微灌的应用条件、所用设备、节水技术参数、效益等进行了综合分析研究。结果是 :膜下微灌比沟灌省水 60 %,省工 90 %,扩大有效种植面积 4.0 9%;地温相对提高 3～ 4℃ ,气温高 3～ 8℃ ,棚内湿度低 2 0 %左右 ;土壤通气性好 ,气体作用强 ,根系发达 ;增产幅度达 2 5 %。
In order to popularize the technology of submerged micro-irrigation under greenhouse plastic film, a comprehensive analysis of the application conditions, equipment, water saving technical parameters and benefits of submerged micro-irrigation was carried out by comparing the submerged micro-irrigation and furrow irrigation of cucumber planting. The results are as follows: the irrigation ratio is 60%, the province is 90%, and the effective planting area is 4.09%; the relative ground temperature is 3-4 ℃, the temperature is 3-8 ℃, the humidity in the greenhouse is about 20% ; Soil aeration is good, strong gas effect, developed root system; increase rate of 25%.