How to solve soil compaction? Causes of soil compaction, how to solve it

What is soil compaction? Soil compaction, in the words of the common people, means that the ground has hardened! The roots of the crop are no longer rooted.

Officially, soil compaction is caused by the destruction of soil aggregate structure, resulting in the reduction of soil water and fertilizer retention capacity and permeability, resulting in soil compaction. The main reason is the reduction and lack of "organic matter" content in the soil.

Soil compaction is the most common disease in farmland at this stage! So what causes soil compaction? How to solve soil compaction? Let's talk about it...

The main causes of soil compaction are the following factors1. Long-term single partial application of chemical fertilizers. Ignore the use of organic fertilizers!

Excessive chemical fertilizers and lack of organic fertilizers have led to a serious decline in soil organic matter! The decline of soil organic matter causes the destruction of soil aggregate structure!

Excessive chemical fertilizer affects the reasons for the decline of soil quality as follows:

1) Excessive application of nitrogen fertilizer: the nitrogen ** of microorganisms increases by 1 part, and the corresponding consumption of carbon increases by 25 parts, and the carbon consumed ** is low in soil organic matter, which affects the activity of microorganisms, thereby affecting the formation of soil aggregate structure and leading to soil compaction.

2) Excessive application of phosphate fertilizer: The phosphate ions in the phosphate fertilizer combine with the cations such as calcium and magnesium in the soil to form insoluble phosphate, which not only wastes phosphate fertilizer, but also destroys the soil aggregate structure, resulting in soil compaction.

3) Excessive application of potassium fertilizer: the potassium ion displacement in potassium fertilizer is particularly strong, which can replace the polyvalent cations that form the soil aggregate structure, while the monovalent potassium ions do not have the role of bond bridge, and the bond bridge of the soil aggregate structure is destroyed, which also destroys the aggregate structure, resulting in soil compaction.

2. The input of organic fertilizer is seriously insufficient

Due to the extreme lack of organic fertilizer input, the soil organic matter content is (very) low and the structure deteriorates, which affects the activity of microorganisms, hinders the formation of soil aggregate structure, causes the acidity and alkalinity of the soil to be too large or too small, and eventually leads to soil compaction.

3. Residual soil of plastic products destroys soil performance

Mainly in greenhouse planting, plastic film and plastic bags are used more, if these things are not cleaned thoroughly, the residue in the soil can not be completely decomposed. It is easy to cause soil compaction!

Rational use of chemical fertilizers, increase the application of microbial agents containing organic matter, supplement organic matter and beneficial bacteria, improve soil physical properties, enhance soil permeability and water retention, improve soil aggregate structure, and provide food and energy for microbial activities.

Soil compaction is an effective way to solve soil compaction by focusing on prevention and rational supplementation of organic and inorganic nutrients.

Causes, hazards and treatment methods of soil compaction (Part I).

Don't be afraid of soil compaction, teach you a few tricks, don't turn over the pot and don't pour the soil, easy to solve.

Soil compaction with drilling to run loosening agent, loosening soil like a steamed sponge, there are pores, **on the search, you can try it.

Soil aggregate structure is an important indicator of soil fertility, and the destruction of soil aggregate structure leads to the reduction of soil water retention, fertilizer retention capacity and permeability, resulting in soil compaction.

The content of organic matter is an important indicator of soil fertility and aggregate structure, and the decrease of organic matter leads to soil compaction. Soil organic matter is an important component of soil aggregate structure. The decomposition of soil organic matter is achieved by the activity of microorganisms.

After excessive application of nitrogen fertilizer to the soil, the nitrogen ** of microorganisms increases by 1 part, and the corresponding carbon consumption increases by 25 parts, and the carbon consumed ** is low in soil organic matter, which affects the activity of microorganisms, thereby affecting the formation of soil aggregate structure and leading to soil compaction.

The soil aggregate structure is formed by the connection of negatively charged soil clay and organic matter through positively charged polyvalent cations. Multivalent cations connect soil particles into large particles in the form of bond bridges to form a soil aggregate structure. When excessive application of phosphate fertilizer to the soil, the phosphate ions in the phosphate fertilizer combine with the cations such as calcium and magnesium in the soil to form insoluble phosphate, which wastes phosphate fertilizer and destroys the soil aggregate structure, resulting in soil compaction.

When excessive potassium fertilizer is applied to the soil, the potassium ion displacement in the potash fertilizer is particularly strong, which can replace the polyvalent cations that form the soil aggregate structure, while the monovalent potassium ions do not have the role of bond bridge, and the bond bridge of the soil aggregate structure is destroyed, which also destroys the aggregate structure, resulting in soil compaction.

In addition to the above-mentioned fertilization problems, soil salinization and irrational tillage can also cause soil compaction.

The more common solution is to increase organic fertilizer, deep ploughing, planting green manure, and applying some calcium-containing magnesium fertilizer.

Summary. Measures to prevent and improve soil: (1) Increase the application of organic fertilizer and insist on returning straw to the field.

2) Scientific fertilization and rational application of chemical fertilizers. According to the test of soil nutrient content, rational application of chemical fertilizers, increase the application of organic fertilizers, and improve soil structure. (3) Use large tractors to carry out subsoiling and land preparation to thicken the soil tillage layer.

Mechanical subsoiling is adopted, and crop straw residues cover the surface of the land.

Measures to prevent and improve soil: (1) Increase the application of organic fertilizer and insist on returning straw to the field. (2) Scientific fertilization, rational application of chemical fertilizers.

According to the test of soil nutrient composition, the chemical fertilizer used in the grinding chain was reasonably applied, and the organic fertilizer was added to improve the soil structure. (3) Use large tractors to carry out subsoiling and land preparation to thicken the soil tillage layer. Mechanical subsoiling is adopted, and crop straw residues cover the surface of the land.

How to solve the problem of soil compaction that has been planted with vegetables.

Rational fertilization, soil tillage, and strengthened water and fertilizer management. Soil compaction in vegetable fields can be improved by applying organic fertilizer! You can apply more organic fertilizer and subloosen the soil.

The soil is deeply turned, organic fertilizer is added, and formula fertilizer is applied. You can try biological fertilizer to reduce flood irrigation. The soil compaction improvement methods of vegetable fields are mainly to increase the application of organic farm fertilizer, crop rotation, and reasonable fertilization.

Large-scale and rational fertilization, using farmhouse manure to change the soil. Combined with subsoiling, use well-rotted farmhouse fertilizer. Increase the application of organic fertilizers to improve soil structure.

It is recommended to use a soil amendment. Long-term application of chemical fertilizers causes serious soil compaction, pH value is acidic or alkaline, and the oxygen and water content in the soil is reduced, which is not conducive to the growth of plants, resulting in root rot and soft rot. The soil amendment can loosen the compacted soil and adjust the pH value to a state that is conducive to plant growth. Good.

loose soil, you can use a shovel to break up the clumped soil and cover it with a layer of loose sandy soil; To form a sand column, you can poke a few small holes in the pot, straw and bury the coarse sand to form a sand column in the potting soil; Increase the application of organic fertilizer, you can add enough cake fertilizer or chicken manure to the flower pot map to improve the soil quality; Reasonable watering, later maintenance, tap water needs to be dried before use, to avoid the situation of compaction.

When the soil is compacted, a small shovel is inserted into the pot to stir to break the clods to make the soil loose and breathable, and then the soil needs to be covered with a layer of loose sandy soil and mixed with the original soil to make the soil loose and fertile.

If you want the compacted soil to loosen quickly, poke a few small holes in the pot, bury a thicker straw, pour coarse sand into the straw, and finally pull the straw out. Let the potting soil form a sand pillar, and then water the sand pillar when watering, so that the water spreads around.

The soil is compacted, which may be caused by the high content of inorganic salts in the soil, and sufficient organic fertilizer can be added to the soil to improve the soil. Some cake fertilizer, chicken manure and sheep manure can be mixed into the soil, and the probiotics produced by fertilizer fermentation make the soil loose and fertile.

In the process of maintaining the plants, long-term irrigation of untreated tap water can cause the soil to become stiff. Because tap water contains a lot of chlorine, the soil will be compacted. When watering the plants in the later stage, tap water should be dried for 2 to 3 days before use, and unpolluted river water or mineral water can also be watered.

1. Loosen the soil

If the soil is compacted, you need to prepare a small shovel or wooden stick to insert it into the pot to stir it, break the clods of soil to make it soft and breathable, and cover the soil surface with a layer of loose sand or humus soil to mix it with the original soil.

2. Form a sand column

If you want to quickly solve the compacted soil, you need to insert a few holes in the pot, then bury a thicker straw in it, then add fine sand to the straw, and finally remove the straw to form a sand column in the potting soil, and water the sand column when watering, so that the water spreads around.

3. Scientific watering

When cultivating plants, if they are watered with untreated tap water for a long time, it will cause the soil to harden and stiffen, because the tap water contains chlorine and bleaching powder, and when watering the plants, it is best to leave the tap water in the sun to dry for 1-2 days before use.

4. Apply thin fertilizer frequently

If you want to solve the compaction of the soil quickly, you need to apply enough basal fertilizer to it, you can apply thin liquid fertilizer or well-rotted organic fertilizer once a month during the growing period of the plant, and it is best to bury the fertilizer at the edge of the pot when fertilizing, so that the soil fertility is uniform.

The fastest solutions for soil compaction:

1.Increase the amount of organic fertilizer, microbial fertilizer, and microbial fertilizer.

Apply more organic fertilizer. For example, manure, circle manure, soil miscellaneous fertilizer, and the use of crop straw to make high-quality organic fertilizer, it is best to apply a high content of microbial live agent.

2.Straw returning.

Promote straw returning and no-tillage mulching, and do our best to reduce unnecessary soil erosion to protect the soil structure from damage.

3.Combination of deep tillage and rotary tillage.

Scientific and moderate deep tillage should be about 35 cm, which is conducive to protecting the structure of the soil tillage layer from being damaged and the growth of crop roots.

4.Improves cohesive soils.

The method of ginseng sand soil and increasing organic fertilizer was used to completely change the physical and chemical properties of the soil.

5.Promote sloping cultivation techniques.

Adopt soil collection and cultivation techniques to reduce soil erosion during heavy rainfall.