近年来由全国农业技术推广服务中心在上海、重庆、江苏等地建立示范点,实施蔬菜无公害栽培技术开发项目,累计有效实施面积达4万多公顷,与非项目区相比,平均667平方米增产值832.3元,成本2.7元,其投入产出比为1:3.24,新增纯收入5亿多元。 ●改善农田生态环境。项目区农药和化肥用量明显减少,农田生态环境得到保护,特别是控制了高毒高残 In recent years, the national agricultural extension service center in Shanghai, Chongqing, Jiangsu and other places to establish demonstration sites, the implementation of pollution-free cultivation of vegetable technology development projects, the cumulative effective implementation area of ​​over 40,000 hectares, compared with non-project areas, an average of 667 square feet The output value of rice is 832.3 yuan at a cost of 2.7 yuan, with an input-output ratio of 1: 3.24 and a net income of more than 500 million yuan. ● improve farmland ecological environment. In the project area, the amount of pesticides and chemical fertilizers significantly reduced, and the ecological environment of farmland was protected, especially the high-toxic and highly-toxic residues