日光温室无污染蔬菜生产定位试验研究

Analysis on the long-term experiment and effects of no-polluted greenhouse vegetable production.

对日光温室蔬菜生产连续进行4年10茬的无污染定位试验,其中处理基肥施用EM堆肥,追肥则减少N肥施用量,病虫防治以生物农药为主,且在病虫无法控制情况下选用少量化学农药,对照采用常规施肥与施药方法,试验结果表明,土壤有机质含量提高了0.14％～0.4％,化肥用量降低50％,农药用量降低30％,产量提高了5％～10％,产值提高1％～6％。

The study is a long-term experiment of alternative technologies for greenhouse vegetable production by using EM compost manure and biological pest control. The paper is a summary of the experiment including the design of whole experiment, the application of EM compost manure and various biological pesticides and other IPM measures, the effects on vegetable yield, cost and benefit, soil properties and product quality. After the experiment, the uses of chemical fertilizer and pesticide have been reduced by 50 % and 30 % , the crop yield and its benefit increased by 5 % -10 % and 1 % -6% , meanwhile the soil organic matter increased by about 0.14% -0.4% .