         In recent years, the prevention and control of arable land pollution, especially heavy metal pollution, has drawn increasing attention. The 19th National Congress of the Communist Party of China put forward the proposal of “strengthening soil pollution control and restoration and strengthening prevention and control of agricultural non-point source pollution.” Recently, Silicone Functional Fertilizer Prevention and Control of Farmland Cadmium Pollution Technology Research Evaluation of Scientific and Technological Achievements will be held in Beijing, China Association of Science and Technology Workers in Agricultural Branch of Agricultural Science and Technology Achievements Evaluation Center organized Chinese Academy of Engineering Fang Zhiyuan and other seven experts, after discussion that the function of organic silicon Fertilizer has realized the combination of scientific fertilization and prevention and control of farmland heavy metal pollution, and provided new materials, new methods and new modes for the remediation of heavy metal in farmland.
         It is reported that silicone fertilizers from Hebei Silicon Valley Academy of Agricultural Sciences research and development, the combination of organic silicon materials and fertilizer. Song Fu, honorary president of Hebei Silicon Valley Academy of Agricultural Sciences is the top ten well-off village of the nation, Handan, Guangdong Yongnian Guangfu East Village secretary, he told reporters: “Silicone functional fertilizer with the ability to restore soil acid-base balance, you can passivation of heavy metals Ion biological activity, blocking crop absorption of heavy metal ions. Silicone material on the soil and ecological pollution-free, to enhance the productivity of cultivated land and crop growth beneficial.
         In recent years, Silicon Valley Academy of Agricultural Sciences in the country established a number of silicone fertilizers to control soil pollution demonstration base. The results of planting experiment in heavy metal pollution area in China showed that the content of cadmium in rice was 0.02 mg / kg and far below the national standard of 0.2 mg / kg by applying organic silicon functional fertilizer. After the test, an increase of more than 150 kilograms of rice per mu, an increase of more than 400 yuan, accounting for the basic cost accounting for the zero cost of cadmium-containing rice.
         According to statistics, at present, the functional silicon fertilizer has been popularized and applied in crops such as rice, corn, tea, grape and other crops at an area of ​​208 mu, significantly reducing crop cadmium content while increasing crop yield by more than 15% Farmers have increased their income by over 100 million yuan.