Alkaline soil improvement method, what fertilizer is used in alkaline soil improvement method?

Apply well-rotted manure, peat, sawdust, edible acid fertilizers, such as lead sulfate, ferrous sulfate, sulfur powder, ammonium sulfate, ammonium nitrate, ammonium chloride, superphosphate, potassium dihydrogen phosphate, potassium sulfate, etc., to neutralize alkalinity in a directional manner.

If it is a flower pot, the commonly used improvement methods for alkaline soil are as follows:

Application of ferrous sulfate: Kilograms of ferrous sulfate can be applied per 10 square meters of open-field flowers, and the pH value of the unit can be reduced after application; For clay heavy soils, the dosage can be increased by 1 3.

Application of vinegar solution: The vinegar applied must be edible rice vinegar, for potting soil with a pH value greater than 7, it can be watered with 150 2004 tone vinegar solution, once every 15 20 days.

Sulfur application: This method is well suited for ground-grown plants, and is characterized by a slower pH reduction, but the effect lasts for a long time.

Blending coniferous soil: Blending coniferous soil is the most fundamental method of improving alkaline soils. Coniferous soil is made from rotten pine and cypress needles, dead branches and other litter, sawdust, etc., and is highly acidic. Generally, alkaline soil mixed with 1 5 or 1 6 coniferous soil is suitable for acid-loving flower potted plants.

The best way to do this is to increase organic fertilizer, using the organic acids produced by the humus in the fertilizer to neutralize the alkalinity! aqui te amo。

1. Use acidic fertilizers, such as ammonium sulfate, ammonium nitrate, ammonium chloride, superphosphate, potassium dihydrogen phosphate, potassium sulfate, etc., to neutralize alkalinity.

2. Plant alkali-tolerant crops, such as cotton, leguminous crops, hemp, underground fruiting crops, wheat, etc., and transform them while utilizing.

3. Deepen the deep layer, match the three ditches, reduce the water level, and wash the alkali year by year.

4. Apply more farm fertilizer, improve the soil, cultivate soil fertility, and enhance the affinity of the soil.

Diammonium phosphate or superphosphate are used for alkaline soil improvement methods.

In the selection of fertilizers and fertilizers. To consider the alkaline characteristics of the soil, attention should be paid to the preferential use of diammonium phosphate or superphosphate. Because the application of calcium, magnesium, phosphate fertilizer or phosphate rock powder on alkaline soil is basically ineffective.

The use of diammonium phosphate and superphosphate is very good, and diammonium phosphate is granular, which is conducive to improving the available phosphorus content of soil.

Soil with high phosphorus content was applied with superphosphate, which contains a certain amount of sulfuric acid, which is conducive to the activation of soil active components.

Alkaline soil improvement measures:

Biological measures are generally considered to be the most effective way to improve saline-alkali land. The introduction of salt-tolerant and salt-washing plants can use plants to drain salt. For example, the willow has a strong tolerance for chloride and other salts.

The structure of the salt glands and pores of the plant itself can take away a large amount of coarse salt from the soil, increase the coverage rate of plants, reduce ground evaporation, and reduce the accumulation of salt.

The application of organic matter to saline-alkali soils is also a typical biological improvement method, which has been widely reported. By cultivating the soil, applying organic fertilizer, and cultivating the fertile layer of desalination fertilizer, the physical and chemical properties of the soil can be improved, and the soil desalination can be accelerated, so as to achieve sustainable development.

Alkaline soil improvement method: If you want to improve alkaline soil, you can add an appropriate amount of acidic fertilizer liquid material to the water; Improving alkaline soils can also improve the soil by planting cotton, beans, and hemp crops in the soil; Deepen the soil tillage layer, improve soil permeability, and change the distribution of salinity in the soil profile.

Alkaline soil refers to soil with soil pH value greater than 7; That is, the concentration of hydroxide ions in the soil solution is greater than the concentration of hydrogen ions, and the use of real burial refers to the soil with a pH value above it. Generally, it includes three types: calcareous soil, saline soil and alkaline soil.

The formation of alkaline soils is controlled by a variety of factors, and regional differences are significant. Salinization and alkalinization often occur at the same time. Due to the continuous expansion of human interference, the vegetation on the grassland has also been seriously damaged, and these places are mostly coastal and belong to the wetland category, and the salinity in the seawater will also affect the salinity content of the land, resulting in serious salinization of the land and serious harm.

Characteristics of alkaline soils

1. Soil color: The color of alkaline soil is mostly light colors such as white and yellow. In some saline-alkali areas, there is often a white powdery alkaline substance on the soil surface.

2. Surface plants: The soil growing in Tamarix, millet, sorghum and other sections is mostly alkaline soil.

3. Texture: Alkaline soil is hard in texture, easy to form lumps, and has poor aeration and water permeability.

4. By feel: alkaline soil has a "hard" feeling in the hand, and it is easy to agglomerate and not spread out after letting go.

5. After watering: After watering the alkaline soil, the infiltration is slow, the water surface is white bubbles, white foam, and sometimes there is a layer of white alkaline substance around the flower pot.

Methods for improving alkaline soils include the addition of organic matter, acidifiers, alkaline soil conditioners, targeted fertilizers, and good irrigation management.

1. Applying a large amount of organic matter (such as rotting compost, straw, wood chips, etc.) can improve the structure and fertility of alkaline soil. Organic matter provides nutrients, increases soil water retention, and improves soil aeration and drainage.

2. The use of acidifiers can reduce the pH value of the soil, thereby reducing the alkalinity of the alkaline soil. Common acidifiers include iron sulfate, aluminum sulfate, etc. When applying acidifiers, it is necessary to pay attention to the dosage and the application of the dosage method to avoid causing damage to the plant and soil environment.

3. Some special alkaline soil conditioners can neutralize alkaline ions in the soil and reduce the alkalinity of the soil. These regulators typically contain acids or salts that can alter the pH of the soil and thus mitigate the effects of alkaline soils.

4. When planting crops, you can choose fertilizers suitable for alkaline soil or residual soil. Some fertilizer formulations are leaked with ingredients that fight alkaline soils, which can provide the nutrients needed by plants and help them better adapt to alkaline environments.

5. Reasonable irrigation management can help alleviate the problem of alkaline soil. Avoid over-irrigation and ensure that the soil is well drained to prevent the accumulation of salts and alkaline substances in the soil.