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土壤熏蒸剂溴甲烷除对几乎所有的土壤病害、线虫、土壤害虫有较高的防效外,对杂草也有相当的效果,并已使用了很长的时间。但自1992年在蒙特利尔协议上,溴甲烷被指定为破坏臭氧层的物质后,要求缔约国逐年削减使用,直至最后禁用。为此,日本也积极开展取代溴甲烷的有关研究、开发工作。作为溴甲烷的取代药剂,虽早已有之,但在适用作物及使用方法上受到一定限制,为此对这些药剂的适用作物及使用方法进行了进一步的试
Soil fumigant Methyl bromide has a very good effect on weeds in addition to its high effectiveness against almost all soil diseases, nematodes and soil pests and has been used for a long time. However, since the Montreal Protocol in 1992, methyl bromide was designated as an ozone depleting substance, Parties were required to reduce their use year by year until they were finally banned. To this end, Japan also actively carry out research and development to replace methyl bromide. Although methyl bromide has long been used as a substitute for methyl bromide, its application to crops and methods of use has been limited. For this reason, further tests on the suitable crops and methods for their use have been conducted