近几年来,由于高附加值的经济作物如玉米、棉花、柑桔、蔬菜、果树、中草药材、瓜类和花卉等的种植面积的增加,苗期病害的发生也在增加,于是杀菌剂的市场销售量也在逐年上升。2001年杀菌剂的销售量为63224.17吨,预计2002年杀菌剂的销量为6.51万吨。2001年农药销售量在万吨以上的农用杀菌剂只有一个,它就是硫酸铜。 In recent years, the incidence of seedling diseases has also increased due to the increase in acreage of high value-added cash crops such as corn, cotton, oranges, vegetables, fruit trees, Chinese herbal medicines, melons and flowers. As a result, Market sales are also increasing year by year. Sales of bactericides in 2001 were 63,224.17 tons, and sales of bactericides in 2002 were estimated at 65,100 tons. In 2001 there was only one agricultural antiseptic with a pesticide sales of more than 10,000 tons, which is copper sulfate.