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本市设施栽培的蔬菜已有1.5万亩,1990年底计划发展到2.2万亩。目前,设施栽培补充肥水,仍采用传统方式,导致设施内空气湿度增大和有害气体含量上升,不但容易引起病害,还会直接污染蔬菜。因此,研究畜粪尿的净化处理与蔬菜设施栽培沼液渗灌技术相配套,既可以生产卫生蔬菜,又能够消除有机污染。
The city has 15,000 acres of vegetable cultivation facilities, the end of 1990 plans to develop to 22,000 acres. At present, the facility cultivation of replenishment fertilizer still adopts the traditional method, resulting in the increase of air humidity and the increase of harmful gas in the facility, which not only easily causes diseases but also directly pollutes the vegetables. Therefore, the study on the excretion of livestock excreta purification technology and vegetable cultivation biogas slurry seepage irrigation technology supporting both the production of health vegetables, but also to eliminate organic pollution.