China's agriculture is now in its mature stage. If we want to achieve new development in the future, we need to change the mode of agricultural development and introduce the concept of green ecological agriculture to carry out the transformation and upgrading. As for the fertilizer industry, fertilizer classification is the first step in the development of eco agriculture. The national fertilizer quality supervision and Inspection Center (Shanghai) to participate in the formulation of the "national standard" classification of fertilizer requirements to be completed, to be divided into ecological fertilizer level, field level and landscape level, and develop a variety of harmful substances according to the grading standard, test method, inspection rules and the corresponding classification and fertilizer identification, packaging, transportation and storage requirements. The standard is a mandatory standard applicable to various chemical fertilizers and organic fertilizers produced by various processes, or fertilizers mixed with chemical fertilizers and organic fertilizers.
The definition of ecological level of fertilizer is able to provide one or more essential plant nutrients, improve soil properties and improve soil fertility to ecosystem has negative effect, maintain agricultural production and ecological security of a class of stable fertilizer. So the development of ecological fertilizer standard should be ways to control harmful substances into the soil and fertilizer through the food chain to do, to ensure food quality and safety; to establish targeted application security in accordance with the rules of fertilization content classification guidance of harmful substances; to ensure the efficient use of fertilizer resources, prevent the unintended use of raw materials can improve the pollution; China fertilizer quality safety level, enhance the enterprise resource conservation and environmental protection awareness. Be sure not to have negative effects on ecosystems. First of all, we must consider the existing risk points in the fertilizer industry. Risk points may come from raw materials, and fertilizer production may also come from unreasonable use. Such as phosphate fertilizer and compound fertilizer in the mineral raw materials, may exceed the heavy metals into the soil.