After the frost has subsided, the farmland in the vast areas of northern China will be in winter idle time. How to manage these farms? In this regard, Greelong organic fertilizer agrochemical experts to the vast number of farmers: the combination of basic soil cultivation and application of organic fertilizer can effectively improve and restore soil fertility, so that the soil environment is stable, and ultimately the soil fertility and productivity of farmland are improved and improved. .
Deep ploughing of farmland harvested with autumn harvest crops such as soybean, cotton, sweet potato, etc. can change the physical structure of the soil, affect the water distribution of the soil layer, and regulate the ratio of water, fertilizer, gas and heat. Since the soil after crop harvesting is compact and solid, the ploughing can improve the structure of the plough layer and establish a plough layer structure suitable for crop growth. It is mainly used to improve soil aeration, facilitate seed germination, reduce the resistance of crop root growth, and enhance root activity. After ploughing, the soil is conducive to water storage and conservation, giving full play to the role of soil as a “small reservoir†and enhancing the drought resistance of spring farmland. Combined with deep application of organic fertilizer, soil and fertilizer will gradually increase soil fertility. Especially for soils with a sticky texture or a barrier layer, the structure can be significantly improved by ploughing and applying organic fertilizer, which is beneficial to the rooting of the crop. For long-term flooding and poor soil physical properties, ploughing can improve the immersion layer formed by long-term flooding, promote oxidation, reduce the accumulation of reducing harmful substances, and contribute to soil health.
When the soil is ploughed and combined with the application of organic fertilizer in the whole layer, it can achieve twice the result with half the effort. The organic matter content of farmland soil in China is generally not high, and it is necessary to pay attention to the rational application of organic fertilizer. In addition to providing an appropriate amount of inorganic and organic nutrients, organic fertilizers regenerate humus to form microaggregates to improve soil properties and improve soil fertility. Soil microaggregates have greater storage capacity, release capacity and transformation capacity for themselves and the applied water and nutrients, and also have greater buffering capacity. Appropriate microaggregates in the soil play an important role in regulating water, fertilizer, gas, heat and buffering properties in the soil. The application of organic fertilizer can also enhance the activity of soil enzymes, enhance the activity of soil enzymes, and improve soil fertility.
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