China's agricultural resources are in short supply, over exploitation and increasing pollution. How to ensure the effective supply, quality and safety of agricultural products under the constraints of resources and environment and improve the ability of agricultural sustainable development is a major challenge that must be dealt with.

Ⅰ

Functional fertilizer

Stand out in the "test"

　 It is reported that the single application of inorganic fertilizer causes the loss of soil organic nutrients and trace elements (organic nutrients and medium and trace elements play an important role in improving crop quality), which destroys the balance of soil nutrients and worsens soil quality. At present, soil heavy metal pollution can not be ignored. About 150 million mu of cultivated land in China is polluted, and the quality of cultivated land is worrying, mainly heavy metal pollution. It not only leads to the worst physical and chemical properties of soil, affects crop development, reduces the biological function and production capacity of cultivated land, and affects the quality of agricultural products. In addition, China's agricultural planting structure is single, long-term unreasonable planting leads to serious soil problems and serious soil degradation in some areas. Soil erosion, desertification and secondary salinization are serious in Northwest China; The black land in Northeast China is poor; The acidification of red and yellow soils in South China is intensified; Coarse ossification and rocky desertification of cultivated land in Southwest China.

Modern agriculture pursues energy conservation, low carbon, efficiency and green, and fertilizer is the largest input of agricultural means of production, which is related to the quality assurance of cultivated land quality and soil ecological construction, and carries the important responsibility for the quality and safety of agricultural products. The most important thing in the transformation and upgrading of chemical fertilizer industry is to create the de productivity of chemical fertilizer. In the future, we must take the development road of quality instead of quantity. On the one hand, control the total amount and reduce production capacity. Strict access and no new construction; Strictly enforce the exit mechanism for non-compliance of environmental protection and energy consumption. On the other hand, adjust the product structure and improve the product efficiency. The products are developing in the direction of high efficiency, diversification and functionality. Soil testing formula fertilizer, water-soluble fertilizer, slow and controlled release fertilizer and functional fertilizer deserve attention. Therefore, the development direction of functional fertilizer is to focus on green environmental protection and agricultural production capacity and contribute to ecological agriculture.

The traditional fertilizer function focuses on providing nutrients for crops, while the new fertilizer gives more new functions to the fertilizer. With the continuous increase and extension of functions, there are development trends such as integration of water and fertilizer, integration of medicine and fertilizer, integration of seed and fertilizer and integration of fertilizer machine, which adapt to the comprehensive comparison service required by modern enterprises, promote the progress of the industry, and become an important aspect to build and support the sustainable development and continuous improvement of agricultural comprehensive production capacity.

Ⅱ

Green ecology

Is the future development goal

　 As we all know, functional fertilizer is the key to the development of new fertilizer in China. So, how should the new functional fertilizer be developed as a multi-disciplinary and multi field cooperative system engineering? Functional fertilizers generally have four characteristics: first, they are water-soluble, slow-release, cache ionic available nutrients in the soil, and release again with the absorption of crops. Second, it can improve the soil, store energy and increase the moisture and fertilizer supply capacity of the soil. Third, improve the utilization rate of fertilizer. Under the condition of water and fertilizer integration, the utilization rate of general functional fertilizer can be increased by about 15% - 20%. Fourth, improve the quality of crops and have a good effect on crop growth.

The correlation between soil health and crop growth can not be ignored, which gives functional fertilizers broad development space to a great extent. Crop growth is not only a single nutrient problem, but also related to many aspects, such as root health problems, crop diseases and insect pests and nutrient absorption disorders. Therefore, the research and development of new functional fertilizers in the future should be based on a more scientific and systematic basis, focusing on the diversification, specialization, high efficiency, practicality and environmental friendliness of functions. As the name suggests, functional fertilizer refers to the fertilizer with special functions other than the function of plant nutrition and soil fertility. It shall be suitable for specific soils and crops and shall not be important for special functions. In the future, the development of functional fertilizers will face three trends: first, the trend of greening or ecology; Second, the trend of specialization; Third, the trend of simplification.

Ⅲ

Industry university research promotion

Work together to drive industrial development

     Although it is not allowed to add plant growth regulators or pesticides to fertilizers in terms of laws and regulations, scientific research and market are now discussing whether they can be added conditionally. Therefore, the formulation of functional fertilizer standards will be one of the important contents of future work (these standards include soil conditioner, organic water-soluble fertilizer Series pollution control safety standards, etc.). To formulate standards in advance, the first thing is to re understand, deepen and transform the existing products. Enterprises need to clarify the mechanism after product transformation and obtain the approval of experts to form a certain market scale, and then determine the management method through the practical verification of the market and the degree of market recognition. Secondly, enterprises should pay attention to the quality and safety of fertilizers in the R & D process, especially for the use of some waste and harmful substances. Functional fertilizers do not encourage a variety to contain too many functions to avoid offset between functions. Therefore, corresponding mandatory and restrictive standards should be formulated for the use of waste in the future.

The healthy and sustainable development of new functional fertilizers requires the joint efforts of the government, enterprises and scientific research forces. As a government, we should give policy support, strengthen supervision and coordination, and as an enterprise, we should expand ideas, strictly manage, pay close attention to operation, and control quality, price and service; At the technical level (colleges, universities and scientific research institutions), we should strive for innovation, make great efforts in energy conservation, consumption reduction, pollution reduction and efficiency increase, and constantly provide high-quality products and agrochemical services. At the same time, we should pay practical attention to the integration of "two modernizations". The core of the deep combination of informatization and industrialization is to support with informatization and pursue sustainable development models, such as new business models such as agricultural materials e-commerce, industry big data application, industry supervision and product traceability system, and intelligent factory demonstration project. We should take the one belt, one road strategy to speed up the "going global" step of the fertilizer industry and build a new pattern of mutual benefit and win-win opening up.