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大棚蔬菜种植中,膜下灌溉只增加土壤水分,不提高棚内空气湿度,具有省水、省工、增产和减轻劳动强度等优点,每亩只投资500元左右,每季可多收入600—1000元,是值得大力推广的浇水新方法。但应注意以下几点: 一、合理布置毛管。在地膜之下、地面之上,两行蔬菜之间布置一条钻孔的塑料软管,软管折径(无水时扁平宽度)为40厘米。每根长度不宜超过100米。
Greenhouse vegetable cultivation, the membrane under the irrigation only increases soil moisture, does not improve the shed air humidity, with water, labor, increase production and reduce labor intensity and other advantages, only invest about 500 yuan per mu, more revenue per season 600 - 1000 yuan, is worth promoting the new method of watering. But should pay attention to the following points: First, a reasonable arrangement of capillary. Under the plastic film, above the ground, a bored plastic hose was placed between the two rows of vegetables. The billet diameter (flat width without water) was 40 cm. Each length should not exceed 100 meters.