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近年来随着农业现代化的发展,除莠剂在农业生产上的应用正日益普及,它不仅能节约大量的劳动力,也给农业生产带来显著的经济效益。在内蒙古地区由于每一劳力负担耕地面积较多,若能充分利用化学除莠的作用,更有其重要的意义。目前内蒙古西部地区普遍利用2.4—D 消除麦田杂草。但是2.4—D 对甜菜污染问题亦应引起注意。因为对谷类作物幼苗期喷施除莠剂2.4—D 这种化学物质(2.4—二氯苯氧乙酸),一旦通过空气漂移降落在甜菜上,就会导致甜菜蔗糖含量的严重降低。据植物生理学者易·司茨维兹尔等人的研究指出:在靠近甜菜地的谷物地上喷施除莠剂时,在操作上必须十分注意,否则将会毒害甜菜。如果
In recent years, along with the development of agricultural modernization, the application of herbicides in agricultural production is gaining popularity. It not only saves a lot of labor but also brings significant economic benefits to agricultural production. In Inner Mongolia, due to the large area of cultivated land per laborer, it is more important if it makes full use of chemical herbicides. At present, the widespread use of 2.4-D in Inner Mongolia to eliminate wheat weeds. However, 2.4-D should also pay attention to beet pollution. Because spraying of the herbicide 2.4-D, a 2,4-dichlorophenoxyacetic acid, at the seedling stage of the cereal crops, once it has landed on beets through air drift, there is a serious reduction in sucrose content in the beet. According to Phylloscius et al., A plant physiologist, careful attention must be paid to the application of herbicides on the ground near the sugar beet, otherwise it will poison the beet. in case