甲基溴是一种广谱性化学农药,一般用作土壤熏蒸剂来防治蔬菜土传病害,因其效果明显,而被我省菜区菜农大量用于蔬菜大棚中的土壤根结线虫和姜瘟等土传病虫害的防治。据2008年底统计,我省甲基溴年施用量500吨左右,并有逐年增加趋势。但甲基溴对臭氧层有很强的破坏力,1992年, Methyl bromide is a broad spectrum of chemical pesticides, generally used as a soil fumigant to prevent soil-borne diseases of vegetables, because of its obvious effect, but by the vegetable garden in our province a large number of vegetables used in greenhouse greenhouse root-knot nematode and ginger Plague and other soil-borne diseases and pests prevention and treatment. According to the statistics by the end of 2008, the annual chemical consumption of methyl bromide in our province is about 500 tons, and there is an increasing trend year by year. However, methyl bromide has a very devastating effect on the ozone layer. In 1992,