论文部分内容阅读
扬州市是我省重要商品粮基地之一。随着该市农业生产的发展,化学农药,特别是有机氯的使用量逐年增长。据统汁,全市1981年有机氯农药销售量为1971年的1.71倍,1982年又比1981年增销159吨,有机氯农药使用的不断增长,必然导致它在土壤和作物中残留量的提高。1981年我们对该市有关县的调查,六六六超标率为:中稻糙米36.84％,鸡蛋18.18％,鸡肉100％,猪肉64.29％,可见污染之严重。为了降低化学农药用量,减少污染,扬州市组
Yangzhou City is one of the important commodity grain bases in our province. With the development of agricultural production in the city, the use of chemical pesticides, especially organic chlorine, has been increasing year by year. According to the statistics, the sales volume of organochlorine pesticides in the whole city in 1981 was 1.71 times of that in 1971, and increased by 159 tons in 1982 compared with that in 1981. The increasing use of organochlorine pesticides inevitably leads to its increase in soil and crop residues . In 1981, in our survey of relevant counties in the city, the exceeding rate of 666 was: 36.84% of middle rice, 18.18% of eggs, 100% of chicken and 64.29% of pork, showing serious pollution. In order to reduce the amount of chemical pesticides and reduce pollution, Yangzhou City