【Knowledge Expansion】Yishizhuang Teaches You How to Break Up Soil Compaction

Reasons for Soil Compaction

1.The soil's pH is either too high or too low. Excessive acidity can easily damage the soil's aggregate structure and cause soil compaction. In alkaline soils, calcium ions can easily react with other fertilizers applied, generating precipitates and resulting in soil compaction.

2.The texture of the farmland soil is heavy, leading to surface soil compaction. Clay contains a relatively high proportion of clay particles, so there are fewer pores in the soil, resulting in poor soil aeration and water permeability. Once it rains, it is easy to cause the formation of a crust on the soil surface.

3.A low content of soil organic matter affects the activity of microorganisms, thereby affecting the formation of the soil's aggregate structure. Or continuous cultivation without interruption can damage the soil structure, leading to soil compaction.

4.Long - term, single - type, and excessive application of chemical fertilizers means that humus cannot be replenished in a timely manner, which can also cause soil compaction and may even lead to soil cracking. Excessive application of nitrogen fertilizers consumes carbon, reducing the organic matter content, destroying the soil's aggregate structure, and causing soil compaction. Excessive application of phosphorus fertilizers causes phosphate ions to combine with cations such as calcium and magnesium in the soil to form insoluble phosphates, destroying the soil's aggregate structure and resulting in soil compaction. When applying excessive potassium fertilizers, the potassium ions in the potassium fertilizers have a particularly strong replaceability, which can displace the polyvalent cations that form the soil's aggregate structure, destroying the aggregate structure and causing soil compaction.

5.Long - term irrigation with groundwater can also easily cause surface soil compaction.

6.Wind - blown sand and soil erosion carry away the fine soil particles in the topsoil layer, destroying the soil structure.

Harm of Soil Compaction

Decline in Root Ability

Under the condition of soil compaction, lack of oxygen leads to a decline in root vitality, and the roots cannot develop normally. The respiration of plant root cells weakens. Moreover, nutrients such as nitrogen mostly exist in ionic form, and their absorption requires the energy generated by cell metabolism. With weakened respiration, the energy supply is insufficient, affecting the absorption of nutrients.

Leading to Nutrient Deficiency Disorders

Nutrient deficiency disorders sometimes do not necessarily mean that the soil lacks this element. Instead, it is due to a series of problems such as soil compaction, inappropriate soil pH, or uneven soil moisture supply, which lead to a decline in the root absorption capacity.

Principles of Breaking Up Soil Compaction

1.Increase the Application of Organic Fertilizers

Increasing the application of organic fertilizers and fully decomposed farmyard manure can not only improve the soil structure, enhance the soil's ability to retain fertilizers, aerate, and regulate temperature, but also increase the soil organic matter content, enhance the soil's fertilizer - storing capacity and its buffering capacity against acids and alkalis, preventing soil compaction.

 2.Increase the Application of Microbial Organic Fertilizers

Yishizhuang bio - organic fertilizers can achieve the goals of breaking up soil compaction, improving the soil structure, and supplementing organic matter and various nutrient elements by adding beneficial bacteria to the soil.

3.Return Crop Straws to the Field
Crop straws are the original source of organic fertilizers. Returning crushed crop straws to the field can increase the soil organic matter content, increase soil porosity, coordinate water, fertilizer, air, and heat in the soil, create a good environment for soil microbial activities, and is conducive to the decomposition and softening of organic matter, improving the physical and chemical properties of the soil.

4.Appropriate Deep Plowing and Rational Irrigation
When the deep - loosening depth is greater than 30 cm, the plow pan can be broken, the soil layer thickness can be increased, and the tillage layer structure can be improved, thus preventing soil compaction. When watering, follow the principle of "water thoroughly when watering, and do not water when the soil is not dry".

5.Soil - Testing and Formula Fertilization
Fertilize according to the results of soil testing. By combining organic and inorganic fertilizers and supplementing nutrients where they are lacking, the application of chemical fertilizers to the soil will not cause soil compaction.

Soil restoration and improvement is a systematic project. It cannot be limited to one aspect. It is necessary to start from the three aspects of soil physical, chemical, and biological properties, clarify the purpose of use, and carry out targeted soil improvement. At the same time, pay attention to sustainability. Do not one - sidedly pursue quick - acting effects. It is necessary to achieve the best state of the soil through overall improvement and gradual accumulation.