Soil acidification is harmful to crops, how is soil acidification? How can acidified soils be improv

Only understand that soil salinization is harmful, but do not think that soil acidification is not good. What are the effects of soil acidification? What causes soil acidification?

How to improve the alkalized soil layer? In recent years, soil acidification has become more and more serious. We know that alkaline soils are not good for crop cultivation, and similarly, acidic soils are not good.

The growth and development of grain crops is most suitable for neutral soil layer and slightly acidic soil, and the harm of acidic soil is relatively large. First, after soil acidification, the effectiveness of chemical fertilizers is greatly reduced, and <>

The nutrients in the light fertilizer can not be digested and absorbed by the soil, so it cannot be absorbed by the crop. Severe alkalinization makes phosphorus deficiency after phosphorus application and low potassium after potassium application, and also reduces the effectiveness of calcium and magnesium medium elements and boron, molybdenum nutrients and other chemical components. The nutrients in the chemical fertilizer cannot be digested, absorbed and used, and finally it seems that there is still a shortage of fertilizer after fertilization, and it cannot promote the growth and development of crops as if it is not fertilized.

The second is that after soil acidification, manganese ions in the soil

Harmful elements such as aluminum ions become active, causing the poisoning of crop rhizomes and the death of plants. Third, under the acidic environmental standard, the microbial strains such as pathogens in the soil are reduced, and the harmful bacteria are increased, which in turn leads to the further aggravation of food crop diseases. The wrong way of watering will also cause the alkalinization of the soil environment, and many alkali cation components, due to unreasonable flood washing, or continuous heavy rain, so that the soil and water in the field are often fluid, and nutrients will also flow out.

Naturally, when it comes to how to solve alkalization, <>

In our village, everyone uses agricultural fertilizer, and it is enough to use jacks on one acre of land, and carry out deep ploughing in the futureCareful cropping, so that the lack of elements in the soil can be filled, after all, the nutrients contained in organic fertilizer are very comprehensive. Naturally, everyone will continue to use lime powder, after all, this is acidic, and the amount of land used per mu will continue to be distinguished according to the pH value, generally 50-100kg, so that it can have a buffering effect of pH value. In order for the soil layer to be used sustainably, it is also necessary to shape the appropriate planting and irrigation techniques, so that the soil layer can have higher fertilizer efficiency.

With the development of agricultural production, crop yield has increased significantly, and long-season cultivation and off-season cultivation have been realized, resulting in a great increase in the uptake of soil nutrients by crops. The concentrated erosion of rainwater in the rainy season, or the way of flood irrigation, causes the leaching to intensify, resulting in a large loss of alkaline salt bases such as calcium and magnesium, which is the main cause of soil acidification. Chemicals regulate the pH value, such as applying some alkaline substances to reduce the acidity of the soil through neutralization reactions, such as applying an appropriate amount of quicklime, alkali residue, calcium chloride, etc.

Increase the application of fully decomposed organic fertilizer, organic fertilizer contains a large amount of organic matter, has a very large buffer, can adjust the acidity and alkalinity of the soil, improve the soil environment.

Caused by excessive soil consumption, incorrect irrigation methods, and fertilization, it is necessary to fertilize reasonably and pay attention to the rotation of land.

It's very likely that you are watering in the wrong way, it is possible that the soil is over-consumed and planted too often, which eventually leads to soil and barrenness. At this time, it is necessary to eat chicken fat appropriately, and it should also be fully stirred with the soil.

Excessive soil depletion. With the development of agricultural production, crop yield has increased significantly, and long-season cultivation and off-season cultivation have been realized, resulting in a great increase in the uptake of soil nutrients by crops.

<>1. Use quicklime for neutralization, soil pH is, sprinkle 130kg of quicklime per mu, soil pH is, sprinkle 65kg of quicklime per mu, soil pH is, sprinkle 30kg of quicklime per mu. 2. Apply high-quality organic fertilizer to promote the formation of soil aggregate structure, enhance soil permeability, and improve the content of organic matter and humic acid. 3. Apply microbial agents to increase the number of microorganisms and improve the content of soil organic matter.

4. Choose alkaline fertilizers, such as ammonium bicarbonate, ammonia, lime nitrogen, calcium, magnesium and phosphorus fertilizers.

1. Improvement measures for soil acidification

1. For the soil with serious acidification, after the crop is harvested, the straw in the ground is cleaned up, and then quicklime is sprinkled, and the ploughing is raked evenly (organic fertilizer needs to be added to prevent soil compaction). If it is a pH soil, sprinkle 130kg of quicklime per acre. If it is a pH soil, sprinkle 65kg of quicklime per acre.

If it is a pH soil, sprinkle 30kg of quicklime per acre.

2. Fertilizer should choose high-quality organic fertilizer as much as possible, which can promote the formation of soil aggregate structure, enhance soil permeability, increase soil organic matter and humic acid content, promote microbial activity near crop roots, and convert insoluble mineral elements in the soil into soluble nutrients, thereby enhancing soil fertility.

3. Apply microbial agents to increase the number of beneficial microorganisms in the soil, thereby increasing the content of organic matter in the soil, activating the nutrients fixed in the soil, and improving the absorption efficiency of nutrients.

4. Apply alkaline fertilizers such as ammonium bicarbonate, ammonia, lime nitrogen, calcium, magnesium and phosphorus fertilizer to neutralize, so as to increase the pH value of the soil.

5. According to the growth and nutritional needs of crops in different periods, soil testing and formula fertilization are carried out to reduce the use of chemical fertilizers.

2. What causes soil acidification?

1. Long-term flood irrigation or long-term heavy rainfall has a very strong leaching effect, resulting in a large amount of leaching of calcium, magnesium, potassium and other salt-based ions in the soil, and the increase of acid ion content, causing soil acidification.

2. Soil pollution caused by improper use of herbicides affects the activity and types of soil microorganisms, which ultimately leads to a decrease in the decomposition rate of organic matter and aggravates the degree of soil acidification.

3. The excessive use of various chemical fertilizers, especially physiological acid fertilizers such as potassium chloride, ammonium chloride, ammonium sulfate, and potassium sulfate, leads to the accumulation of soil acid ions becoming more and more serious.

4. Long-term cultivation on the same piece of land, without reasonable crop rotation and land rest, resulting in more and more poor soil.

5. Vehicle exhaust emissions and the combustion of coal, natural gas and oil have led to more serious acid rain and exacerbated soil acidification.

<>1. Natural factors: mainly including destructive natural disasters and abnormal soil-forming factors, such as climate, topography, etc., which are the basic causes of natural soil degradation processes (such as desertification, salinization, acidification, etc.). 2. Human factors:

Human beings blindly exploit and utilize agricultural resources such as soil, water, and gas, such as deforestation, overgrazing, and irrational agricultural farming, resulting in a vicious circle of ecological environment.

1. How soil degradation occurs

Soil degradation refers to the phenomenon of erosion of different intensities under the influence of various natural factors (especially human factors), resulting in the decline of soil quality and the productivity of agriculture, forestry and animal husbandry, and even the overall deterioration of the soil environment.

1. Natural factors.

These include devastating natural disasters and abnormal soil-forming factors (e.g., climate, parent material, topography, etc.), which are the underlying causes of natural soil degradation processes (e.g., erosion, desertification, salinization, acidification, etc.). The root cause of soil degradation is the disharmony between humans and nature, i.e. the human factor.

2. Human factors:

Human factors not only directly lead to the occupation of natural land, but also the blind development and utilization of agricultural resources such as soil, water, gas, and biology (such as overgrazing, deforestation, and irrational agricultural farming) by human beings has caused a vicious circle of the ecological environment. For example, the "greenhouse effect" caused by human factors has led to climate warming and the resulting global changes, resulting in severe land degradation. Water scarcity also contributes to soil degradation.

2. What fertilizer is used for acidic soil improvement methods

Acidic soils can generally be improved by applying farm manure, but can also be improved in other ways:

1. Apply farmhouse fertilizer.

Farmhouse fertilizer contains organic matter, which can improve the permeability of the soil, improve the activity of rhizosphere microorganisms, and transform the insoluble mineral elements in the soil into soluble nutrients), so as to achieve the effect of fertilizing the soil.

2. Apply lime.

Lime is applied to acidic soil every year, 10-40 kg per mu until the soil becomes slightly acidic or neutral.

3. Plant acid-tolerant crops.

Grow acid-tolerant crops, such as mung beans, rapeseed, buckwheat, rice, etc., and then adjust the acidity of the soil through land preparation management and soil activation.

<>1. Long-term heavy rainfall or long-term flood irrigation leads to a large amount of leaching of salt-based ions such as calcium, magnesium and potassium, and the increase of acid ion content, which eventually causes soil acidification. 2. Improper use of pesticides reduces the microbial activity in the soil, which leads to a decrease in the decomposition rate of organic matter and aggravates soil acidification. 3. The excessive use of chemical fertilizers, especially physiological acidic fertilizers such as potassium chloride and ammonium sulfate, has exacerbated soil acidification.

4. Long-term planting of crops and unreasonable crop rotation leads to poor soil. 5. The phenomenon of acid rain is serious.

1. Causes of soil acidification

1. Long-term heavy rainfall causes the salt ions in the soil to be filtered by water, and the hydrogen ions in the water and air are absorbed by the soil, replacing the original salt ions, resulting in soil acidification.

2. Soil weathering is very strong, producing a large number of salt-based ions, but long-term heavy rainfall or long-term flood irrigation leads to a large amount of leaching of salt-based ions such as calcium, magnesium and potassium in the soil, and the increase of acid ion content, which eventually leads to soil acidification.

3. The improper use of various pesticides pollutes the soil, which affects the microbial activity in the soil, resulting in a decrease in the rate of microbial decomposition of organic matter and accelerating soil acidification.

4. The excessive use of various chemical fertilizers, especially physiological acidic fertilizers such as potassium chloride and ammonium sulfate, leads to the aggravation of soil acidification.

5. Planting crops on the same land for a long time, and not carrying out reasonable crop rotation, resulting in more and more impoverished soil.

6. Industrial exhaust gases and automobile exhaust gases are discharged into the air, and oxidized to form acid rain containing sulfuric acid or nitric acid, thereby aggravating the degree of soil acidification.

2. Soil acidification improvement measures

1. When applying basal fertilizer, try to choose high-quality organic fertilizer, which can effectively adjust the pH of the soil, increase the content of soil organic matter and humic acid, improve the soil aggregate structure and permeability, and promote the activity of microorganisms, convert the insoluble mineral elements in the soil into soluble nutrients, and increase the fertility of the soil.

2. Apply alkaline fertilizers such as ammonium bicarbonate, ammonia, lime nitrogen, calcium, magnesium and phosphorus fertilizers or quicklime (generally 100kg of quicklime per mu) for neutralization to control the pH of the soil (long-term use of quicklime will lead to serious soil compaction, and organic fertilizer needs to be added).

3. Increase the application of microbial agents, rapidly increase the number of beneficial microorganisms in the soil, improve the content of soil organic matter, activate the fixed nutrients in the acidified soil, and improve the absorption efficiency of nutrients.

4. Soil testing and formula fertilization are applied according to the growth and nutrient needs of crops, so as to reduce the use of chemical fertilizers.

Summary. Hello dear, dear, this is a manifestation of soil degradation. Acidified soils generally have a pH below them, but most of our organisms, or plants, are suitable for neutral or alkaline conditions.

The cause of soil acidification is that we do not follow the proper fertilization and use too much acidic fertilizer. For example, superphosphate, potassium chloride, etc.

How can soil acidification be improved?

Hello dear, dear, this is a manifestation of soil degradation. Acidified soils generally have a pH below them, but most of our organisms, or plants, are suitable for neutral or alkaline conditions.

The cause of soil acidification is that we do not follow the proper fertilization and use too much acidic fertilizer. For example, superphosphate, potassium chloride, etc.

In general, we can use alkaline fertilizers such as lime to neutralize acidity, and we can also use some plant ash. It's what we call pot bottom ash. Of course, if possible, organic fertilizer can be used to improve the acid-base buffering performance and alleviate soil acidification.

Can superphosphate be used, superphosphate is acidic.

You can't use it anymore, and the more you use it, the more serious it will become.

1. Apply lime: After the autumn harvest, apply quicklime to the soil to adjust the pH of the soil. 2. Smoked fire manure:

Acidification is controlled by burning weeds and straw from the field. 3. Precise fertilization: When cultivating crops, apply fertilizer to them according to the needs of the plant to reduce the amount of chemical fertilizer.

1. Apply lime

If you want to improve the problem of soil acidification, you can clean up the straw and weeds in the soil after the autumn harvest, and then apply quicklime to the soil, and 100 kg of quicklime can be applied per mu, and then plough the soil to adjust the pH in the soil to make it neutral.

2. Smoked fire manure:

When improving the soil, the method of fumigation manure can be adopted, which requires the use of straw and weeds in the field to burn the manure, and the smoked manure is alkaline, which can neutralize the acidity in the soil, and the manure contains a large amount of potassium, which can maintain the balance of acid and potassium in the soil.

3. Precise fertilization

If you want to improve acidified soil, you need to apply fertilizer accurately, you need to measure the elements contained in the soil and the lack of elements, and then prepare fertilizer according to the needs of crops, reduce the amount of chemical fertilizer, so as to achieve the purpose of preventing acidification, and it is best to apply organic fertilizer to crops, because organic fertilizer has a large buffer.

4. Mulching cultivation

When breeding crops, it is best to use the method of cover cultivation, which needs to cover the soil with a layer of plastic film or straw to reduce the erosion of water on the soil, thereby slowing down the loss of alkaline salt base in the soil, and when applying nitrogen fertilizer to crops, you can apply ammonium biphosphate to avoid soil acidification.