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目前,在我国除草剂试验与应用中,有时出现了效果不良现象,同一品种在不同地区及同一地区的不同年份防治效果各异,即是同一地区,同样气候与土壤条件下,也存在着差异。从1978年以来,黑龙江省国营农场试验和鉴定的除草剂新品种多达30个左右,涉及大豆、玉米、小麦、甜菜、水稻等多种作物,有的品种至今尚难定论,从而也就难以给国内除草剂工业发展提供依据。
At present, in our country herbicide testing and application, sometimes the effect of poor performance, the same species in different regions and the same region in different years of prevention and control of different effects, that is the same region, the same climate and soil conditions, there are also differences . Since 1978, as many as 30 new varieties of herbicides tested and appraised at state-run farms in Heilongjiang Province have involved various crops such as soybean, corn, wheat, sugar beet, and rice. Some species are still hard to come by so far, To provide the basis for the domestic herbicide industry.