Too much fertilizer application in the land will lead to soil compaction, how to solve it?

Paddy fields and wheat fields are used many times continuously, and land compaction is particularly serious, so it is completely possible to use wheat and rice to grow rapeseed as green manure and return to the field. This is done by sprinkling the seeds after harvesting wheat or rice, and properly managing them so that they can safely overwinter. After the beginning of spring, water the appropriate amount frequently, sprinkle a small amount of urea to promote seedlings, (don't underestimate this urea, it may change 6 times the natural nitrogen fertilizer for you) after the rape flowers bloom, the seeds are not ripe before harvesting, chopping and scattering into the field, and deep ploughing and burial.

In this way, one or two crops are rotated to ensure that the fields are fertile and the soil is loose. And it can be completely realized with little or no chemical fertilizer.

Straw returning to the field is not simply crushing the straw and recultivating it to the soil, so that the straw is difficult to decompose in the soil, and it will not play the role of straw returning to the field. It is necessary to compost and ferment the straw, and then return it to the field to cultivate into the soil, and it can also be fermented and treated by the biogas digester, and then applied to the soil. The second is to increase the application of organic fertilizer and bacterial fertilizer, according to the lack of soil organic matter, increase the amount of organic fertilizer, appropriately supplement beneficial bacteria, use the metabolic activities of beneficial bacteria, improve the aggregate structure of the soil, and also improve the soil.

The soil is dry for a long time, and the organic matter contained in it cannot be transformed and exerted; The soil is moist for a long time, earthworm activity is frequent, organic matter activity is large, and the soil is loose. However, due to heavy rainfall, the soil will be compacted when the soil is stressed. In fact, farmers use chemical fertilizers every year, and no matter how compacted the land is, it will not be able to withstand the toss of iron oxen, and the grain harvest will not be reduced.

Mechanical subsoiling, less no-tillage and crop straw residue covering the ground surface are adopted. Covering the soil with straw and fixing the soil with root stubble can protect the soil, reduce wind erosion and ineffective evaporation of water, improve the utilization rate of natural rainfall, effectively prevent and control soil erosion, increase soil moisture content, and improve soil fertility. Returning straw to the field is the most basic and thorough way to improve the soil.

In this case, it is necessary to maintain the land, choose the right plants for planting, pay attention to soil management, pay attention to watering, and try not to use excessive fertilizers.

In such a situation, it is necessary to reduce the use of chemical fertilizers, and then increase the watering time to solve the situation.

I think that at this time, it is necessary to reduce the use of fertilizers appropriately, to ensure the permeability of the soil, to improve the quality of the soil, and to avoid the reduction of organic matter content.

Excessive use of chemical fertilizer, soil compaction is serious, organic fertilizer can be added to improve the soil.

Chemical fertilizer, generally referred to as chemical fertilizer, is a fertilizer made by chemical and/or physical methods that contains one or several nutrients needed for the growth of crops. Also known as inorganic fertilizers, including nitrogen fertilizers, phosphate fertilizers, potassium fertilizers, micro fertilizers, compound fertilizers, etc., are inedible.

They have the following common characteristics: simple composition and high nutrient content; The fertilizer effect is fast, and the fertilizer is strong; Some fertilizers have acid-base reactions; Generally, it does not contain organic matter, and there is no effect of soil modification and fertilization. There are many types of chemical fertilizers, and their properties and application methods are quite different.

Fertilizers made by chemical methods that contain nutrients that are needed for the growth of one or several crops. Abbreviation for chemical fertilizer. Fertilizers that contain only one nutrient in a declarable amount are called unit fertilizers, such as nitrogen fertilizers, phosphate fertilizers, potassium fertilizers, and minor macro-element fertilizers and trace element fertilizers.

Chemical fertilizers that contain two or three of the three nutrients of nitrogen, phosphorus, and potassium and whose content can be indicated are called compound fertilizers or mixed fertilizers. The solubility of the active components of a fertilizer in water is usually a measure of the effectiveness of a fertilizer. Grade is the main indicator of fertilizer quality, which refers to the percentage of available nutrients or their oxides in fertilizer products, such as:

Percentage content of nitrogen, phosphorus and potassium.

Phosphate fertilizer, nitrogen fertilizer, and potassium fertilizer are chemical fertilizers that are in high demand for plants.

The macronutrients nitrogen, phosphorus and potassium in the soil usually cannot meet the needs of crop growth, and chemical fertilizers containing nitrogen, phosphorus and potassium need to be applied to make up for it. In addition to chlorine, which is not lacking in the soil, several other nutrients need to be fertilized with micronutrients. Chemical fertilizers are generally mostly inorganic compounds, and only urea is an organic compound.

Fertilizers that contain only one type of nutrient element that can be labeled are called unit fertilizers, such as nitrogen fertilizers, phosphate fertilizers, potassium fertilizers, etc. Any chemical fertilizer that contains two or more of the three nutrients of nitrogen, phosphorus and potassium and whose content can be indicated is called compound fertilizer or mixed fertilizer. Grade is the main indicator of fertilizer quality.

It refers to the percentage of available nutrients or their oxides in a fertilizer product.

According to the chemical properties, chemical fertilizers can be divided into:

1.Physiological acidic fertilizers. In the aqueous solution of chemical fertilizer, the grass absorbs too many cations from the fertilizer, and the remaining anions generate the corresponding acids, making the solution acidic, and most of the ammonium salts and potassium salts belong to this type of fertilizer.

2.Physiological alkaline fertilizer. If the anion absorbed and utilized by the forage grass is faster than the cation absorbed and utilized, the cation in the soil solution is excessive, and the corresponding alkaline compounds are generated, so that the solution becomes alkaline, such as calcium nitrate, magnesium nitrate, etc., are alkaline fertilizers.

3.Physiological neutral fertilizer. The rate at which the grass absorbs anions and cations is about the same, and the soil solution has a neutral reaction, such as potassium nitrate, ammonium nitrate, urea, etc.

According to the composition of nutrients, chemical fertilizers can be divided into: nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, compound fertilizer, trace elements, etc. According to the use, chemical fertilizers can be divided into:

Base fertilizer and top dressing.

In addition, chemical fertilizers can also be divided into fast-acting fertilizers, slow-acting fertilizers, and long-acting fertilizers. Soil fertilizer, foliar fertilizer, etc.

1. Increase the amount of organic fertilizer and reduce soil viscosity.

2. Use microbial agents to activate the soil.

3. Medium and trace element fertilizer.

4. Water quantum and other functional products to quickly loosen the soil.

<> excessive use of nitrogen fertilizer can easily cause soil compaction. After soil compaction, the air permeability will be reduced, and the ability to retain water and fertilizer will be weakened, which will not only inhibit the aerobic respiration of the crop, make it difficult for the root system to take root, but also cause the crop to be unable to absorb nutrients in the soil, and finally lead to a decrease in yield. If you want to break the soil class, you can add organic fertilizer or apply a high content of microbial agents, or turn the soil deeply, break the closed plough bottom, improve the structure of the tillage layer, or use soil testing formula fertilization technology, use soil amendment, and appropriately mix some sand when the soil texture is too sticky.

1. What chemical fertilizers will make the soil compact

1. Fertilizer that causes soil compaction.

1) Excessive use of nitrogen fertilizer will lead to soil compaction, and its air permeability will be reduced after soil compaction, and the aerobic respiration of plants will be inhibited or even unable to breathe.

2) After the soil hardens, its water and fertilizer retention capacity will be weakened, and the root system of the plant will be difficult to take root, so it will not be able to absorb the effective nutrients in the soil, and finally lead to a decrease in yield.

2. The method of breaking the soil compaction.

1) Increase the application of organic fertilizer, return the straw to the field, or apply a high content of microbial agents.

2) Deep ploughing of the soil, breaking the closed plough bottom layer formed between the tillage layer and the core soil layer due to the long-term application of rotary tillage and ridge tillage, so as to improve the structure of the tillage layer and coordinate the water and fertilizer relationship of the soil.

3) Use soil testing formula fertilization technology to avoid blind use of chemical fertilizers.

4) Use soil conditioner to improve soil structure, and when the soil texture is too sticky, some sand can be appropriately added.

Second, what kind of raw material is chemical fertilizer made of?

1. The raw materials for making chemical fertilizers are nitrogen, phosphorus, potassium, sodium, manganese, calcium, boron, sulfur, molybdenum, zinc, copper, iron and other nutrients.

2. The chemical fertilizer that contains only one kind of nutrient elements that can be labeled with the content of Lu Suhe is a unit fertilizer, such as nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, trace element fertilizer and minor macroelement fertilizer, of which phosphorus, nitrogen and potassium are chemical elements that are more demanded by plants.

3. Containing nitrogen, phosphorus, potassium these three nutrients of 2 kinds (or 3 kinds of both) and can indicate the content of the fertilizer, generally called compound fertilizer, mixed fertilizer, such fertilizer is characterized by high nutrient content, less side components, good physical characteristics, for balanced fertilization, improve the utilization rate of fertilizer, promote high yield and stable yield of crops has a very important role.

Now the soil is really very. I believe that the farmer's friends should have no strangers, such as questions, absolutely heard. The problem is actually very well understood, the soil should be a relatively loose one, such as the soil dug from the shovel should be very loose, but the soil of the plate is difficult, and the shovel is also a whole piece.

A whole piece. It is very difficult for this kind of earth to achieve this appearance, and the plants are fundamentally natural to grow.

Why agriculture has been good for so many years, in this time there are so many problems this time, it is actually reasonable to pay attention to the search for the causes that can be effectively improved, and today and everyone is just talking about some of the hazards of wind in the soil. How it was formed, how should I improve.

One, harm. There is a problem with the surface of the soil, the danger can be very much, because the roots of the plant grow in the soil, and if he becomes very hard, the roots are not good and do not absorb nutrients, then the crop is naturally long is bad. In addition, this soil is very poorly aerated and the roots of the plant also breathe in the soil, which will be easily caused by respiration.

Second, the reason for the reason.

Soils have a variety of problems. In fact, the misuse of fertilizers is linked to relationships. Previously, we used traditional fertilizers that were thousands of years old.

This not only damages the soil, but also has a use for the soil. The effect of improvement forms a good virtuous cycle, but after the fertilizer, it cannot be used by the plant and will remain in the soil.

In this case, some beneficial organisms in the soil will die slowly. It turns out that loose soil will not be able to maintain the structure, and there will be problems with taper. This soil has poor storage capacity and poor air permeability.

Third, how to improve.

Since I knew the problem, I naturally knew how to improve, then it was necessary to use fertilizer rationally. The use of fertilizers should never be excessive, taking care to understand the needs of the crop or be based mainly on traditional organic fertilizers. In this way, it can reach more beneficial organisms in the soil.

When watering, it should also be noted that do not water, it is easy to cause slate. At the same time, the soil often becomes soil, making the soil more breathable.

To improve soil pH, soil compaction is mainly due to the use of chemical fertilizers, chemical fertilizers with high sulfur content are easy to lead to soil compaction, the best way to solve the problem is to reduce the use of chemical fertilizers, increase the use of organic fertilizers, farm fertilizers, biological fertilizers, in addition, deep tillage, soil conditioners can also be alleviated.

Soil compaction improvement method: rational use of chemical fertilizers, pay attention to the use of high-quality organic fertilizers; increase the input of beneficial bacteria; Crushing crop straw and returning it to the field can improve soil structure, and covering the land with straw residue can reduce soil erosion.

If the soil has the problem of slabbing, it can be very harmful, because the roots of the plant grow in the soil, if it becomes very hard, the root system does not grow well, can not absorb nutrients well, then the crop will naturally not grow well. In addition, the air permeability of this soil is very poor, and the roots of plants also have to breathe in the soil, and if they can't breathe, it will easily cause death. The reason why there are various problems in the soil, in fact, is inseparable from the abuse of chemical fertilizers, before we have been cultivating for thousands of years are using some traditional fertilizers, which not only will not harm the soil, but have an improvement effect on the soil, forming a good virtuous circle, but after the fertilizer is used too much, it can not be used by plants, and it will remain in the soil.

Organic fertilizer, which has buffering capacity, can improve stress resistance, promote microbial activity, and maintain acid-base balance; Biological fertilizer, restores activity in water, and microorganisms diffuse in the soil to increase vitality; manure, which contains a variety of trace elements, is applied once every 3 to 6 months; Compound fertilizer, containing a variety of trace elements, can improve the structure and ensure a good environment; Inorganic fertilizer, composed of minerals, has a simple composition and is easy to decompose.

Soil compaction can be improved by organic fertilizer, which has a strong buffering capacity, which can improve the stress resistance of the soil, promote the activity of microorganisms, and maintain the acid-base balance of the soil. It contains a large amount of nitrogen, which can be quickly absorbed by plants and develop and grow branches, such as fully decomposed soybean cake fertilizer, or precipitated rice washing water, which is an organic fertilizer.

Biological fertilizer can also effectively improve the problem of soil compaction, microbial fertilizer must be attached to the dry charcoal if it wants to survive, it can prolong the survival time, it is directly mixed into the soil when used, it will be reactivated when it encounters water, and the rich microbial bacteria will spread in the soil, increase soil vitality, and can be used once every 1 2 months on average, so that the roots can breathe normally.

Soil compaction can also be improved by using manure, manure is a high-quality nutrient soil raw material, containing a variety of trace elements, rich in nutrients, applied once every 3 to 6 months on average, increasing the vitality nutrients required by the soil. The disadvantage of manure is that it cannot be used too often, the growth rate of plants is relatively slow, and it needs to be used with other fertilizers.

To improve the state of soil compaction, compound fertilizers can be used, which contain a variety of trace elements. The amount of use is judged according to the crop or soil condition, diluted with water, which is conducive to soil absorption, improves the structure, and ensures a good environment.

Inorganic fertilizer can also improve the condition of soil compaction, also known as fast-acting fertilizer, composed of minerals, simple composition, high content of simple compounds such as carbon dioxide and carbonate, easy to decompose, soluble in water. When used to dilute with water, it can be quickly absorbed when used to irrigate the soil, but the amount is too much, and it is easy to destroy the soil acid-base balance, so it can be arranged as appropriate.