Organic matter of soil refers to organic compounds containing carbon in various forms in the soil. It is an important part of the soil and an important indicator of the level of soil fertility. It has a great influence on the physicochemical properties and fertility of the soil. In recent years, large-scale application of chemical fertilizers and little or no application of organic fertilizer have seriously affected the effective supply of nutrients to crops, and it has been difficult to increase grain yield. Therefore, it is imperative to improve soil organic matter. Specifically, the following methods can be used:
The application of organic manure is a good soil improver. It can not only ripen the soil, maintain the good structure of the soil, but also enhance the fertilizer, fertilizer and buffer capacity of the soil, and continuously supply the nutrients needed for the growth of the crops. Create good soil conditions.
Promote popularization of straw returning with wheat, rice, corn and other straw returning techniques and spraying of corrosion inhibitors, which can not only effectively use organic fertilizer resources, but also improve soil structure, enhance soil fertility and fertilizer supply performance, save fertilizer input, and reduce Production costs increase farmers' income.
Intercropping and Rotation in Implementation In recent years, crop multiple cropping index has become higher and higher, resulting in a reduction in many soil organic matter contents and decreased fertility. Implementing crop rotation and intercropping systems to adjust the planting structure so that the combination of land use and land management can not only maintain and increase soil organic matter content, but also improve the quality of agricultural products, and is of great significance in promoting the sustainable development of agriculture.
The green manure cultivation based on local conditions can provide rich organic matter and nitrogen for the soil, promote the combination of land use and land management, reduce continuous cropping obstacles, reduce the amount of chemical fertilizers used, and increase soil organic matter content.
Soil testing, formula fertilization, soil testing, and formula fertilization are based on soil nutrient testing and fertilizer field trials. Based on the laws of crop manure requirements, soil nutrient properties, and fertilizer effects, based on the rational application of organic fertilizers, nitrogen, phosphorus, and potassium are proposed. Application amount, fertilization period and fertilization of medium and trace elements
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