我区有一半冬水田遭受眼子菜、四叶萍等恶性杂草的危害,严重草害田约有80多万亩,每年因此少收稻谷1亿多斤。1972年我们开始进行夏季稻田化学除草,效果都较好,但由于夏季气温高,稻苗杂草共生,药物选择范围小,施药技术难度大,使一些地方发生药害问题,影响全区推广。1979年我们根据眼子菜、四叶萍秋季能继续生 Half of the winter paddy fields in our district are endangered by the weedy vegetables such as Eyed Peas and Silybum palms. About 80 million mu of grasses are harmed seriously and more than 100 million kilos of paddy are harvested each year. In 1972, we began to carry out chemical weed control in the summer paddy field, and the effect was good. However, due to the high temperature in summer, the symbiosis of rice seedling and weeds, the small range of drug selection and the difficult application of pesticides, the problem of pesticide injury occurred in some places and affected the promotion of the whole region . In 1979, according to our eye food, Sipin leaves fall can continue