         Fertilizers act directly on the soil, where excessive levels of harmful substances threaten soil health. The main pollutants of chemical fertilizers are heavy metal, biuret, impurity salts such as sodium chloride and fluoride, mineral radioactivity and some organic pollutants, which are mainly generated through mineral raw materials, processing or by-products, and using waste acid .
         Taking organic fertilizer as an example, the issue of raw material safety has always been the focus of the industry. As a result of environmental pollution and the development of intensive agriculture, a large amount of pollutants enter organic manure resources such as livestock manure, urban garbage and urban sludge, resulting in the continuous accumulation of toxic and hazardous substances (heavy metals, organic pollutants, pathogens, etc.) It threatens the quality and safety of soil, water and agricultural products. According to the Nanjing Institute of Soil Science, Chinese Academy of Sciences, Jiangsu Province, intensive livestock farms manure survey data, if the organic fertilizer standards for the EU green food production as a reference, then exceeded 66% of zinc, up to the standard value of 8 times; 40%, up to 16 times the standard value; copper exceeded 34%, up to 25 times the standard value; chromium and nickel exceeded 14% respectively; lead exceeded 4%. Even according to the EU standard for organic fertilizer to judge, exceeded 52% of zinc, cadmium exceeded 20%, copper exceeded 26%, chromium exceeded 10%. In addition, compared with foreign countries, the technical regulations for the application of organic manures in China are not yet mature, leading farmers to over-use organic manures.
         To this end, in May last year, the State Council issued the “Action Plan for Soil Pollution Prevention and Control” (“Soil 10”) calling for revision of the standards for fertilizers, feedstuffs, toxic and harmful substances in irrigation water, and control of pollutants in agricultural sludge to further standardize pollutants Control requirements. Fertilizers Politics and Industry are actively working to create a safe fertilizer. Recently, the Ministry of Industry and Information Technology in conjunction with other ministries to develop “fertilizer grading and requirements of the mandatory national standard draft for approval is for public comment. The standard has changed the past based on the classification of nutrient content of the practice, based on the limited number of hazardous substances divided by fertilizer, to create a fertilizer safety out of a crucial step. Insiders in the industry said that on the one hand, “fertilizer grading and requirements” is like a “mirror of the demon,” and encourages fertilizer companies that take responsibility and mission bravely. They will seek small profits, fail to fulfill their corporate social responsibilities, and irregularly run enterprises Prototype, through policy-oriented and market Forced to promote the safe development of fertilizer in depth, to stimulate the subjective initiative, as a positive. On the other hand, “fertilizer classification and requirements” define the ecological level of fertilizer, the key point is not to bring negative effects to the ecosystem, undoubtedly pointed to the direction of fertilizer development, but also contribute to the current part of the speculation concept of organic farming to reduce temperature , To clear up “Li Gui” for the good life of the people and leave farmers who truly understand agriculture, love the countryside and love peasants.
          In addition, the Ministry of Environmental Protection has released the “Determination of Soil Water-Soluble Fluoride and Total Fluoride Ion Selective Electrode Method” (HJ873-2017) to standardize the determination of water-soluble fluoride and total fluoride in soil. For the first time, Since January 1, 2018 come into operation. This undoubtedly adds technical support for the maintenance of soil health. In the future, I believe there will be more technical norms around the soil health, policies and other issues introduced, referring to soil health and agricultural product safety.
         Fertilizer crops in the harvest, yield credit for all to see, is the name of “food grain.” It is for this reason that fertilizer safety is also an essential and integral part of the cornerstone of the good life of mankind. As an important producer of agricultural inputs, fertilizer companies do not have the chance to take the initiative to deal with. Limited to hazardous substances is the trend of the times, for the present and the future to leave a sustainable development of agriculture is the bounden duty of the fertilizer industry, fertilizer companies to actively explore the limits of hazardous substances in technology, bold innovation, a strong response to the voice of the people a better life.