The granule structure plays a good role in regulating soil fertility. Its function is to make soil fertility factors more coordinated with water, fertilizer, gas, and heat. Good granule structure should first have "water stability" and "mechanical stability." Non-dispersed granules of the structure in water are called water-stable granule structures. Under certain external forces, the pellets that are not easily damaged are called "mechanically stable" pellets. At the same time have better anti-biodegradation and destruction capabilities. The important reason for the destruction of soil structure is that there is no certain degree of stability. The second is better granules, in the arid zone nearly spherical and the diameter of 0.25-10mm is good, in which a certain number of 0.5-3.0mm in diameter is best. In wet areas, agglomerates are suitable for diameters of up to 10 to 20 mm. The second is to have multiple aperture gaps. All kinds of pores should be properly proportioned, from the single grains to each other agglomerated into small particles, and then cemented into a large aggregate structure. In this way, there is a proper amount of ventilation pores, an appropriate amount of small pores, ventilation and conservation.
According to soil nutrient and fertility data measured by using a soil and fertilizer nutrient speedometer, the aggregate structure has a coordination effect on fertility factors.
1. The soil that can coordinate soil moisture and air has better granule structure. There are a lot of capillary pores inside the aggregate, and there are a certain number of ventilation 7L gaps between the granules. When rainfall or irrigation occurs, the water quickly enters the sham soil and is retained by the capillary pores. The excess water can infiltrate faster, reduce surface runoff, and erode erosion. The pellets resemble a “small reservoirâ€. Large 7L gap after the seepage of air can be timely replenishment, there is ample air between the granules, the granules store more adequate moisture, a good solution to the soil water and gas conflicts. Because of the poor capillary channel between the granules, and after the shrinkage of the surface granules, it cuts off the contact with the following granules and forms a protective layer. The evaporation of water is slowed down, which can delay the drought. Drought resistance, ventilation and water conservation.
2. Consistency in the coordination of the consumption and accumulation of soil nutrients The granule structure of the soil within the capillary gap often maintains more moisture and lacks oxygen. A certain amount of ventilation pores are formed between the granules and there is a sufficient supply of oxygen. The former is hyperactive with microbiological activities, undergoes anaerobic decomposition, and the organic matter is slowly decomposed to preserve nutrients. The latter is well ventilated, aerobic microorganisms are active, decomposition of organic matter is fast, and feed conversion is rapid. The stronger the aerobic decomposition between granules, the more oxygen is consumed, and the less oxygen in the granules, the slower the decomposition. Therefore, the soil with granule structure gradually releases nutrients from the outer layer to the inner layer of the granules, and the microorganisms act simultaneously, accumulate nutrients, and release coordination, so that the plants receive nutrition continuously and play the role of “small fertilizer storehouseâ€.
3. It can adjust soil temperature and improve soil temperature. Coordination of water and gas in granule structure, more organic matter, darker soil color, less soil temperature change, the temperature of the entire soil layer is adjusted by soil moisture. In the daytime, the temperature of sandy soil is lower than that of unsuspended sand, but it is higher than that of sand and soil at night. Therefore, during daytime and nighttime, soil temperature below k is lower, which is favorable for plant root growth.
4. Improve soil ploughing and improve the soil conditions where the plants are rooted. Soils with agglomerate structure have reduced conglutination and ripening properties. More loose soil, easy to farm management. Loose and porous soil, the roots have small interpenetration resistance, the root system can be more evenly distributed, and increase the absorption area. Roots thrive under moderate rooting conditions.
According to soil nutrient and fertility data measured by using a soil and fertilizer nutrient speedometer, the aggregate structure has a coordination effect on fertility factors.
1. The soil that can coordinate soil moisture and air has better granule structure. There are a lot of capillary pores inside the aggregate, and there are a certain number of ventilation 7L gaps between the granules. When rainfall or irrigation occurs, the water quickly enters the sham soil and is retained by the capillary pores. The excess water can infiltrate faster, reduce surface runoff, and erode erosion. The pellets resemble a “small reservoirâ€. Large 7L gap after the seepage of air can be timely replenishment, there is ample air between the granules, the granules store more adequate moisture, a good solution to the soil water and gas conflicts. Because of the poor capillary channel between the granules, and after the shrinkage of the surface granules, it cuts off the contact with the following granules and forms a protective layer. The evaporation of water is slowed down, which can delay the drought. Drought resistance, ventilation and water conservation.
2. Consistency in the coordination of the consumption and accumulation of soil nutrients The granule structure of the soil within the capillary gap often maintains more moisture and lacks oxygen. A certain amount of ventilation pores are formed between the granules and there is a sufficient supply of oxygen. The former is hyperactive with microbiological activities, undergoes anaerobic decomposition, and the organic matter is slowly decomposed to preserve nutrients. The latter is well ventilated, aerobic microorganisms are active, decomposition of organic matter is fast, and feed conversion is rapid. The stronger the aerobic decomposition between granules, the more oxygen is consumed, and the less oxygen in the granules, the slower the decomposition. Therefore, the soil with granule structure gradually releases nutrients from the outer layer to the inner layer of the granules, and the microorganisms act simultaneously, accumulate nutrients, and release coordination, so that the plants receive nutrition continuously and play the role of “small fertilizer storehouseâ€.
3. It can adjust soil temperature and improve soil temperature. Coordination of water and gas in granule structure, more organic matter, darker soil color, less soil temperature change, the temperature of the entire soil layer is adjusted by soil moisture. In the daytime, the temperature of sandy soil is lower than that of unsuspended sand, but it is higher than that of sand and soil at night. Therefore, during daytime and nighttime, soil temperature below k is lower, which is favorable for plant root growth.
4. Improve soil ploughing and improve the soil conditions where the plants are rooted. Soils with agglomerate structure have reduced conglutination and ripening properties. More loose soil, easy to farm management. Loose and porous soil, the roots have small interpenetration resistance, the root system can be more evenly distributed, and increase the absorption area. Roots thrive under moderate rooting conditions.
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