Soil health refers to the capacity or quality of soil in three aspects, namely, maintaining the productivity of plant
Soil health refers to the capacity or quality of soil in three aspects, namely, maintaining the productivity of plants and animals, maintaining or improving the quality of water and air, and promoting the health of plants and animals. Soil health indicators can be divided into physical, chemical and biological characteristics of soil, which are influenced by soil management methods such as farming methods and crop rotation, and are used to determine soil health. Physical indicators include soil structure, soil bulk density, water permeability, aggregate stability, etc., which affect the availability of soil moisture and air and are extremely important for plant growth.
A, the healthy quality of soil refers to
1, soil health refers to the ability or quality in three aspects, namely, maintaining the productivity of animals and plants, maintaining or improving the quality of water and air, and promoting the health of animals and plants.
2. Soil health indicators are mainly divided into physical, chemical and biological characteristics of soil, which are generally influenced by soil management methods such as farming methods and crop rotation, thus determining the health status of soil. These are indicators of soil health dynamics, which are closely related to soil organic matter. Soil organic matter plays an important role in determining soil health, which affects the physical, chemical and biological characteristics of soil.
3. Physical indicators are mainly soil structure, soil bulk density, water permeability, aggregate stability, etc. These indicators will affect the availability of soil moisture and air, which is very important for plant growth. Chemical indicators mainly refer to soil pH, CEC, nutrient content required for plant growth, etc. Biological indicators include soil organic matter, soil microbial biomass, microbial activity and its secretion.
Second, how to quickly improve soil hardening
1, conventional scarifying
Soil hardening can be improved by loosening the soil regularly and shoveling the soil properly with a small shovel, which can improve the permeability of soil and improve soil hardening, but this method is not a permanent cure.
2. Adjust fertilization
(1) Soil hardening can also be improved by adjusting fertilization. Proper amount of organic fertilizer, such as crop straw or decomposed manure, can increase the organic matter in the soil and improve the soil hardening.
(2) After soil hardening occurs, the amount of chemical fertilizer must be reduced. The single nutrient in chemical fertilizer will aggravate the problem of soil hardening.
3. Sand mixing
The air permeability of hardened soil is poor, and appropriate amount of sand, vermiculite and perlite can be added, which can not only increase the air permeability of soil, but also improve the structure of soil.
4. Returning straw to field
In the field, returning straw to the field can improve the physical properties of soil. After the straw is crushed and returned to the field, it can also increase the organic matter content and porosity of the soil, thus providing a good environment for microbial activities and avoiding soil hardening.