The reasons and measures for the decline of soil fertility
1 Reasons for the decline in soil fertility
Initiated thinking The complexity of the agricultural production structure makes it subject to a variety of conditions. Although agricultural production is mainly labour-based and supplemented by natural conditions, the final analysis is the basic element and the most basic condition for agricultural production. In order to develop the national economy and better respond to the call of the country, the industry-led and agricultural-based guidelines will be implemented to improve the soil fertility, which is of great significance for the development of agricultural production and the increase of production per unit area.
2 Analysis of Related Countermeasures for Soil Fertility Decline
2.1 Real-time monitoring and survey of cultivated land quality and soil fertility
Improve the quality of agricultural production, enhance the protection of soil fertility, implement the important policy of “sustainable developmentâ€, increase the emphasis on relevant parts, increase propaganda, further improve the quality of agricultural production, and rationally improve the existing technical defects of cultivated land .
Soil fertility is a key factor in the effectiveness of arable land. The primary task of protecting arable land is to substantially grasp the "every action" of soil fertility. As the number of soil surveys is relatively small and the time is relatively long, the data analysis of most soils has become “historical dataâ€, and many land use methods have undergone earth-shaking reforms. This requires a real-time survey of the soil, so as to more comprehensively grasp the basic composition of soil nutrients, and lay a foundation for scientific research on soil.
2.2 Focus on the implementation of straw returning technology
The data shows that the content of nitrogen, phosphorus and potassium per 100kg of rice straw can be equivalent to 1kg of superphosphate, 3kg of table nitrogen, 4kg of potassium chloride, and the increase rate can be as high as 10% or more. The use of straw returning technology to increase soil organic matter is one of the most effective methods nowadays. It not only can improve soil quality, optimize soil fertility, but also can relatively reduce the amount of chemical fertilizer applied. It is a modern environmental protection approach.
2.3 Rationally promote innovative technologies based on the status of soil capacity
The intake of soil elements in cultivated areas must be focused. Take Yichun City as an example. Although the local soil contains a large amount of potash fertilizer, potassium fertilizer cannot be used. The soil condition can be achieved by adding potassium fertilizer at one time and adding reasonable cooperation with other fertilizers, and then applying fertilizer application techniques to achieve the effect of balancing soil fertility and increasing cultivated land yield.
Soil testing and formula fertilization technology is an efficient fertilization technology that can balance the nutritional ratio of crops and improve the quality of agricultural products. It can increase the utilization rate of fertilizers by 3% to 5%, which can reduce wasteful waste such as unnecessary fertilizer loss and volatilization, thereby reducing pollution and other problems.
Strengthen the emphasis on the analysis of the advantages and disadvantages of agricultural production, clarify the ways to improve soil quality, actively explore different cultivation conditions for different soils, and develop different methods for practical chemical fertilizer methods and irrigation measures, so as to The mastery of the cultivation and development of the laws, the improvement of soil fertility in light of local conditions, and the simultaneous technological innovation are also essential tasks for the development of agricultural production.
2.4 The Necessity of Organic Fertilizer Application
Organic manure can not only provide sufficient supply of nutrients for the development and growth of crops, but also increase the content of organic matter for the soil. It plays an important role in the improvement of soil structure and the improvement of soil water conservation and fertilizer retention capacity. The application of organic fertilizer can be achieved through a variety of methods, such as the harmonious development of agriculture and animal husbandry, animal husbandry, and the cultivation of green manure on soils with extremely low organic matter content and straw returning technology.
2.5 Focusing on Soil and Water Conservation to Improve Ecological Agriculture
Land resources are a kind of sustainable development resources, but their sustainable development as resources is a condition. People should formulate detailed plans for the development of eco-agriculture in light of actual conditions, adopt the most scientific development model, focus on water and soil conservation, protect wetlands, prohibit cultivation of slope land, reform and adjust agricultural and pastoral structures, create farmland shelterbelts, and return farmland. Lin also returned to the grass to scientifically manage the land with serious problems.
The improvement of soil fertility is the basis for the development of agricultural production. The improvement of soil fertility, excellent crop quality, and scientific and reasonable farming habits are important factors for agricultural yield.
Soil can continuously supply nutrients and moisture to plants, and its own nutrient and regeneration capacity are the basic determinants of crop production. For the problem of declining soil fertility, it should be done on the basis of environmental protection, not only paying attention to the nutrient composition of the soil itself, but also continuously improving the soil fertility, thereby promoting the sustainable development of agricultural production.
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