What should you do to regulate soil activity when growing crops?

I think that if you want to improve the activity of the soil, you need to use the following methods, the first is that the soil needs to be ploughed regularly, which is conducive to soil loosening. The second is to use farm fertilizer as much as possible, so that the pollution to the soil is relatively small, and the soil can be used sustainably.

Biological bacteria can be used to regulate soil activity, and can also fully promote the root growth of planted crops, provide corresponding nutrients for planted crops, and improve the quality and yield of planted crops.

First, increase the amount of organic fertilizer organic fertilizer contains a large amount of organic matter, nitrogen, phosphorus, potassium and other various polluting elements are abundant, the use of opportunities can effectively improve soil fertility, increase the content of organic matter in the soil, improve the porosity of the soil, improve the physical and chemical structure of the soil, while the organic fertilizer contains a large number of microorganisms, improve the microbial activity in the soil, improve the soil permeability, in many bad soil transformation process will use organic fertilizer, the effect is very significant.

Principle of regulation of soil organic matter.

The mass fraction of humus is an important indicator of soil fertility. Within a certain range of organic matter content, soil fertility increased with the increase of organic matter content, and crop yield also increased with the increase of organic matter content, but the more soil organic matter was not better, and this correlation was not obvious when it exceeded a certain range. For example, the high organic matter mass fraction of some low-humidity paddy soils is caused by the slow decomposition of the soil due to excessive moisture, which is a sign that the soil needs to be improved.

The main measures to increase the organic matter in the soil are: on the one hand, it is necessary to increase the organic matter of the soil; On the other hand, it is necessary to understand the factors affecting the accumulation and decomposition of organic matter, so as to regulate the accumulation and decomposition process of organic matter, so that the accumulation and consumption of soil organic matter can reach a dynamic equilibrium.

Regulates the rate of decomposition of soil organic matter.

Soil organic matter plays a multifaceted and important role in soil fertility and plant nutrition. It mainly includes the following aspects:

1. Provide various nutrients needed by crops.

2. Enhance the water and fertilizer retention capacity and buffering capacity of the soil.

The decomposition rate of soil organic matter is closely related to the microbial activity of soil Qili, so we can control the factors affecting microbial activity to achieve the purpose of regulating the decomposition rate of soil organic matter. The main aspects of the regulatory pathway are as follows:

1.Regulates soil water, air and heat conditions, and controls the transformation of organic matter.

The hydrothermal state of soil water vapor affects the direction and speed of organic matter transformation. In production, irrigation and drainage, tillage and other measures are often used to improve soil water, air and heat conditions, so as to promote or regulate the transformation of soil organic matter.

2.Rational tillage and crop rotation.

Reasonable tillage rotation can not only regulate the type, quantity and distribution of organic matter entering the soil at different depths, but also regulate the water, gas and heat conditions for the transformation of organic matter. It is often a powerful measure to maintain and increase the quality and quantity of soil organic matter. The good grain and fertilizer rotation and water-drought rotation system formed by the Chinese people in the practice of permanent production are all good agricultural cultivation measures for using land to cultivate land, which is not only conducive to giving full play to soil fertility, but also improves the organic matter quality fraction and fertilizes the soil.

3.Adjust the carbon to nitrogen ratio and soil pH.

According to the composition of organic matter, adjust its carbon and nitrogen ratio to regulate the mineralization and humification process of soil organic matter. When applying organic fertilizer with large carbon and nitrogen ratio, some well-rotted organic fertilizer and chemical nitrogen fertilizer with high nitrogen content can be appropriately added at the same time, and the transformation of organic matter can be accelerated by reducing the carbon and nitrogen ratio. Soil microorganisms are generally suitable for living in the neutral to slightly alkaline range, and the soil acidity and alkalinity can be improved to enhance the activity of microorganisms and improve the conditions for soil organic matter transformation.

Factors affecting soil nutrient availability: In addition to microorganisms, soil nutrient availability is also affected by soil moisture, aeration, temperature and pH.

Soil thermal status is the driving force of soil biochemistry, which not only affects the activity of microorganisms, but also affects the release of soil nutrients, ion adsorption or desorption on soil colloids, the growth of plant roots and the absorption of nutrients, etc. Good soil should have strong temperature stability.

Measures to increase soil organic matter include:

Increase the application of organic fertilizer: The effect of organic fertilizer on the soil is mainly manifested in two aspects, one is to expand the soil nutrient pool, especially the effective nutrient reservoir of the soil, so as to improve the soil nutrient status and improve the supply capacity of nutrients required by plants. The second is to improve the physical, chemical and biological properties of soil.

Commonly used organic fertilizers are: manure, compost, manure, manure and peat.

Planting green manure: Planting green manure is an effective measure to fertilize the soil. The decomposition of green manure is fast, the formation of humus is also relatively rapid, and the consumption of new humus and original humus after the application of green manure is relatively large, except for offsetting a small part, humus increases significantly.

The planting of green manure should be based on the principle of "adapting measures to local conditions, making full use of land, actively cultivating land, and combining nutrients", and economic benefits should also be considered. When adding green manure, attention should be paid to the depth, time, irrigation and sowing of the pressing. In some cases, green manure can also cause an excitation effect, which is the effect of increasing the rate of mineralization of soil organic matter (positive excitation) or slowing down (negative excitation) due to the addition of organic matter.

Positive stimulation accelerates the consumption of the original organic matter in the soil, which is not conducive to the accumulation of organic matter, so the amount of green manure applied at a time should not be too small. It is necessary to make the new humus mass increased by adding green manure exceed the original humus consumption, so as to achieve the purpose of increasing the humus content. It can also be used to change fertilizer, that is, a part of the green manure is used as feed, and a part of the manure is used instead of green manure.

Block structure: approximate cube type, length, width, height are roughly equal, smuggling is generally greater than 3cm, 1-3cm within the called nuclear structure, irregular shape, mostly in the clay weight and lack of organic matter in the soil, low degree of ripening of dead loess common this structure, due to mutual support, will increase the pores, resulting in rapid evaporation of water and run moisture, more have the effect of pressing seedlings, not conducive to plant growth and breeding.

Improvement method: raking can be done when the moisture is suitable, after the frozen soil in winter, rolling to improve the content of soil organic matter, can also be mixed with river sand or slag ash to improve.

Sheet structure: arranged in the horizontal plane, the horizontal axis is longer than the vertical axis, and the interface is horizontally sheet-like; The plough layer of farmland, the ash layer of forests, and the compacted soil of gardens all belong to this category. It is not conducive to aeration and water permeability, resulting in soil drought and soil erosion.

Improvement method: loose soil application of organic fertilizer, park street green space pedestrians often pass through, can be carried out breathable pavement, planting ground cover plants or necessary fence protection, crust and compaction can be taken to take the right moisture deep turning, increase the application of organic fertilizer solution.

Columnar structure and prismatic structure: arranged along the vertical axis, the vertical axis is greater than the horizontal axis, the soil is upright, the structure is of different sizes, solid and hard, the internal ineffective pores are dominant, the root system of the plant is difficult to intervene, the aeration is poor, and there are large cracks formed between the structures, which leak both water and fertilizer.

Improvement method: fertilization and planting green manure through deep ploughing.

Aggregate structure: This is the most suitable structure soil type for plant growth, which indicates the level and utilization value of soil fertility to a certain extent. It can reconcile the contradiction between soil moisture and air; It can coordinate the contradiction between the consumption and accumulation of soil nutrients; It can regulate the soil temperature and improve the temperature condition of the soil; It can improve the arable ability of the soil and improve the growth and elongation conditions of plant roots.

Increase the content of soil organic matter, and use soil conditioners, conditioners, it is recommended that you use Gansu Linze Jincheng attapulgite soil to improve and condition the soil, 1. Due to its molecular structure, it has the ability to improve the soil to prevent soil compaction

2. Jincheng attapulgite natural high silica contains 19 kinds of trace elements such as iodine, selenium and zinc, which can effectively supplement the trace elements of the soil, and the supplement of trace elements can improve the ability of farming, disease and pest resistance, and increase the dry matter content of crops.

3. Because it has a strong adsorption capacity, when the fertilizer is used in the field, the amount of fertilizer in the farmland is large at the beginning, Jincheng attapulgite can effectively absorb a part of the fertilizer on its molecular surface, but when the amount of fertilizer in the farmland is reduced, it is slowly released, so it also has a slow-release effect, rational use, can extend the fertilizer effect from 45 days to 90-120 days. The specific surface area of one gram of attapulgite is equivalent to the size of a house of 120-200 square meters, so the sustained release effect is better.