Why does organic fertilizer help soil improvement?

It is very difficult to grow crops such as vegetables, fruit trees or traditional Chinese medicine on hard compacted soil texture or loose sandy soil (except for a few crops, such as Polygonatum polygonatum cultivation).

If organic fertilizer is mixed in the field, the organic fertilizer will become food for microorganisms, which is conducive to the reproduction of microorganisms. Organisms of different sizes, such as bacteria, fungi, insects, and earthworms, begin to move.

At this time, through the mucus secreted by microorganisms, the ionic structure becomes a small clump in the microscopic soil. Such a soil becomes an agglomerate structure, which is very suitable for the growth of crops.

Because of the space between the dumplings and the dumplings, they can make ventilation and drainage good. At the same time, the dumplings can also store water one by one, and the water retention is also very good.

There are many microorganisms in such soils, and they form a balance that pushes against each other. As a result, there will be no malignant microorganisms to multiply, just like the human gut, where beneficial microorganisms are balanced with harmful microorganisms. At the same time, crop damage mixed with organic fertilizer can increase the risk of pest and disease infestation.

According to the characteristics of the soil, climatic conditions and the characteristics of crop growth and development, formula fertilization, strict control of the use of toxic chemical fertilizers and dosage.

Increasing the application of organic fertilizer and increasing the content of soil organic matter can enhance the adsorption capacity of soil colloids to heavy metals and pesticides. For example, brown fulvic acid can absorb and dissolve trichlorobenzene herbicides and some pesticides, and humus can promote the precipitation of cadmium. At the same time, the addition of organic fertilizer can also improve the flow conditions of soil microorganisms and accelerate the biodegradation process.

Yes, the organic matter in the organic fertilizer can attach to the fertilizer in the soil.

Advantages of organic fertilizer:

Rich in organic matter and various nutrients, it can not only provide nutrients directly for crops, but also activate potential nutrients in the soil, enhance microbial activity, and promote the transformation of substances.

The application of organic fertilizer can also improve soil physical and chemical properties, improve soil fertility, and prevent and control soil pollution, which chemical fertilizers do not have. Making full use of the scientific accumulation and rational application of organic fertilizer sources can not only reuse agricultural waste, reduce chemical fertilizer investment, protect the rural environment, and create a good agricultural ecosystem, but also achieve the purpose of fertilizing soil with stable and high yield, increasing yield and income.

Improve the content of soil organic matter, renew the composition of soil humus, and increase soil fertilizer.

Soil organic matter is an important indicator of soil fertility and the material basis for the formation of a good soil environment. Soil organic matter consists of undecomposed, semi-decomposed organic matter residues and humus in the soil. The fresh organic fertilizer in the applied soil, under the action of microorganisms, decomposes and converts into simple compounds, and at the same time, through the action of biochemistry, it is recombined into new, more complex and relatively stable soil-specific macromolecular polymer organic compounds, which are black or brown organic colloids, that is, humus.

Humus is the stable organic matter in the soil and has an important impact on soil fertility.

Improve soil physical properties.

Organic fertilizer produces hydroxyl ligands in the process of decomposition, which combine with polyvalent metal ions on the surface of soil clay or hydroxide polymer to form aggregates, and the density of organic fertilizer is generally smaller than that of soil, and the organic fertilizer applied to the soil can reduce the bulk density of the soil, improve the soil aeration condition, reduce the soil planting resistance, and make the tillage better. The organic quality has strong water retention ability, large specific heat capacity, small thermal conductivity, dark color, easy heat absorption, and good temperature regulation.

The role of organic fertilizers.

1. Increase the content of soil organic matter.

Regular application of organic fertilizer can significantly increase the content of soil organic matter, which is conducive to maintaining the stability of soil organic matter and improving the physical and chemical properties of soil.

2. Promote the formation of soil aggregate structure.

Soil organic matter, calcium carbonate and polysaccharides have a good effect on the stability of soil structure. The application of organic fertilizer can increase the content of soil organic matter more than the application of manure, especially the production of more five-carbon sugars, six-carbon sugars and polysaccharides. This is particularly beneficial for the formation of water-stable aggregates, such as a significant increase in water-stable aggregates that are larger than them.

3. Provide nutrients.

Organic fertilizer contains various nutrients required by crops, and the use of organic fertilizer can significantly increase the content of nutrients in the cultivated soil, especially potassium. In 1995, the Ministry of Agriculture surveyed the cultivated land in 12 provinces across the country, and found that the phosphorus content in the cultivated land increased compared with before 1990, while the cultivated land area lacking potassium and trace elements was expanded.

4. Regulate the nitrogen content of the soil**.

In the early stage of decomposing large straws, microorganisms absorb nitrogen from the soil to form their own somatic cells, resulting in the biological fixation of soil nitrogen, which plays a role in temporarily preserving nitrogen. When the microorganisms die, this part of the nitrogen is decomposed and released. In addition, the application of organic fertilizer increases the energy matter in the soil, and is also conducive to biological nitrogen fixation, the organic matter content in organic fertilizer can reach about 30%, and relevant data show that the energy released per carbon oxide can be used by nitrogen-fixing microorganisms to fix 10 40mg of nitrogen.

5. Improve the activity of soil microorganisms and soil enzymes.

After the application of organic fertilizer, the number of microorganisms increased significantly, especially in the soil near the application of organic fertilizer, which had a good effect on accelerating the release of organic nutrients and activating the nutrients in the soil. In addition, organic fertilizers can reduce diseases in certain crops.

Other advantages of the application of organic fertilizers in agricultural production include:

1. Nutritional balance, promote crop growth, increase yield significantly, and high fertilizer efficiency;

2. Improve the quality of agricultural products;

3. Inhibit pathogenic bacteria and reduce pests and diseases;

4. Loosen and improve the soil to reduce nitrate pollution in the soil;

5. Increase the absorption of water by crops, enhance the drought resistance and lodging resistance of crops;

The efficacy and role of bio-organic fertilizer in detail.

Organic fertilizers are slow-acting fertilizers. The application of organic fertilizer can not only provide comprehensive nutrition for plants, but also have long fertilizer efficiency, increase and renew soil organic matter, promote microbial reproduction, improve the physical and chemical properties and biological activity of soil, and is the main nutrient in green food production.

<>1. Soil improvement.

Organic fertilizer is a good soil amendment. When organic fertilizers are used in farmland or degraded soils, organic matter can be increased, soil structure can be modified, and chemical fertilizers can be reduced.

and can mitigate potential erosion of the soil.

2. Improved land use.

A considerable part of agricultural organic waste is still used in land after direct or simple treatment, although it also has fertilizer value and can play a role in improving soil quality. The use of organic fertilizer for agricultural waste has the following advantages: from the nitrogen in the waste to more stable organic nitrogen, although there is also a loss of some nitrogen, the remaining nitrogen is often not easy to be leached and volatilized; Initial agricultural waste carbon-to-nitrogen ratio.

High or low, when applied directly to the soil, will lead to insufficient or excessive nitrogen in the soil, affecting crop growth, and instead composting.

The carbon and nitrogen ratio of the post-organic fertilizer tends to be reasonable, which is more suitable for land use (theoretically speaking, the carbon and nitrogen ratio of decomposed organic fertilizer should tend to be about 16 of microbial bacteria. It is generally believed that the decrease of CN from the initial 25 30 to 15 20 indicates that the organic fertilizer has been decomposed and stabilized. ps：

For every 25 g of organic carbon consumed by microorganisms, 1 g of nitrogen needs to be absorbed); The heat generated by the organic composting process reduces the number of weed seeds in the waste, mitigating the effects of weed damage.

3. Reduce the risk of pollution and odor complaints.

Organic composting can mitigate the effects of these problems. Since organic compost products are often in demand, their way out is no longer an issue, and the nature of organic compost that can be stored and treated allows it to be transported farther away than manure or other raw materials. A well-run organic composting facility is almost free of odors and flies.

In the process of urbanization and the continuous development of agriculture on a large scale, organic waste is beginning to become a burden rather than an asset. Especially for some agricultural breeding enterprises, because there is no large area of land to absorb these animal manure, the number of animals far exceeds the capacity of the land, making the manure treatment a headache.

4. Organic fertilizer is used as a substitute for breeding bedding.

Many studies have shown that powdered organic fertilizer can be used as a bedding material to replace sawdust and straw flour in farms.

From the perspective of animal welfare and improvement of the breeding environment, the bedding layer should be laid in the breeding enclosure, which is conducive to adsorbing animal excrement and reducing environmental pollution on the one hand, and provides a comfortable ground environment for animals on the other hand.

5. Organic fertilizer to reduce soil-borne diseases.

Good organic fertilizers have been found to mitigate soil-borne diseases in plants without the use of chemical control. This disease-inhibiting feature of organic fertilizers has been widely recognized and appreciated.

1.It contains the nutrients required by crops and the balanced proportion of various beneficial nutrients, which is conducive to the absorption of crops. Therefore, the more organic fertilizer is applied, the balanced proportion of soil nutrients is conducive to the absorption and utilization of soil nutrients by crops, and will not cause soil due to more organic fertilizer.

A large increase in a certain nutrient element disrupts the balance of nutrients in the soil.

2.Organic fertilizer contains a large amount of organic matter and is a place where various microorganisms grow and multiply. Organic fertilizers can also produce various substances such as vitamins, enzymes, auxins and other substances.

3.Improve soil fertility and water retention. Organic fertilizers have a good cation replacement ability, which can absorb more potassium, ammonium, magnesium, zinc and other nutrients, improve soil fertility, and the fertilizer retention ability of decomposed organic fertilizers.

In addition, organic fertilizer has a good buffering capacity, which can reduce the acidity change and soil compaction caused by long-term application of chemical fertilizer.

4.Reduce nutrient fixation and improve nutrient utilization. Organic fertilizer contains a variety of organic acids, humic acids, hydroxyl groups and other substances, all of which have good chelating ability. It can be chelated with manganese, aluminum, iron and other metal elements to form chelates to reduce the harm of manganese ions to crops.

5.Accelerate the formation of soil aggregates and improve the physical and chemical properties of soil. Organic-inorganic aggregates are important indicators of soil fertility.

The higher its content, the better the physical properties of the soil. The more fertile the soil, the stronger the soil, water and fertilizer retention capacity, and the better the aeration performance, the more conducive to the root growth of crops.

It is good to use organic fertilizer to improve the soil, and it is also very good for crops.

In addition to enhancing soil fertility, organic fertilizer and farmhouse fertilizer have the biggest advantage of improving soil activity and increasing soil organic matter content and water content. In order to achieve the purpose of increasing production!

It will greatly improve the soil quality, and the effect of the bumper harvest of bio-organic fertilizer is very good, which contains biocontrol flora, nutrient growth-promoting flora and high-quality organic carbon source material.