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上海近郊设施园艺栽培已发展到1000ha,但设施供水已成难题,若采用传统方法浇灌,劳动强度大,沟灌容易死苗,并且容易产生土壤次生盐渍化,影响蔬菜产品产量与品质。应用滴灌技术并与滴肥结合,不仅可减轻劳动强度,提高管理水平,而且可提高产品产量与品质,对设施园艺具有重大适用价值。本成果解决了下列关键技术:1.弄清了滴灌技术:①控制水压力0.08～014MPa;②滴灌水抛上下限分别为60kPa 和10kPa;③一次滴灌2～5h,滴水量5～12mm。
Horticultural cultivation in the suburbs of Shanghai has been developed to 1000ha, but the water supply has become a problem, if the use of traditional methods of irrigation, labor-intensive, easy ditch irrigation, and easy to produce secondary soil salinization, affecting the yield and quality of vegetable products. The application of drip irrigation technology combined with drip irrigation can not only reduce labor intensity and improve management level, but also improve product yield and quality, which has great application value to facility horticulture. The results of the following key technologies to solve: 1. Drip irrigation technology to clarify: ① control the water pressure of 0.08 ~ 014MPa; ② drip irrigation lower limit were 60kPa and 10kPa; ③ a drip 2 ~ 5h, drip 5 ~ 12mm.