What is a microbial fertilizer and what is the relationship between a microbial fertilizer and a che

Microbial fertilizer is a product that causes crops to obtain specific fertilizer effects due to the life activities of microorganisms, and is a kind of fertilizer used in agricultural production. It has a history of nearly 50 years in China, from rhizobia agent - bacterial fertilizer - microbial fertilizer, from the name of the evolution has explained the gradual development process of China's microbial fertilizer. For a long time, there have been some misunderstandings and prejudices in society about the perception of microbial fertilizers.

Microbial fertilizers.

Microbial fertilizers.

One view is that it is highly fertiliserable, regards it as a universal fertilizer, and even threatens to completely replace chemical fertilizer; Another view is that it is not fertilizer at all. Actually, both of these are prejudices. The world's many years of experiments have proved that inoculating soybeans, peanuts and other leguminous crops with rhizobia can improve the efficiency of symbiotic nitrogen fixation, and indeed have the effect of increasing yield.

Disadvantages of using chemical fertilizers:

1.Due to the lack of organic matter and humus, the soil aggregate structure is destroyed, resulting in soil compaction and reduced agricultural and crop yields.

2.The heavy use of chemical fertilizers reduces the quality of vegetables and fruits. Because crops not only need nitrogen, phosphorus, potassium, but also calcium, iron, zinc, selenium and other trace elements.

Moreover, the general composition of chemical fertilizer is relatively single, and the long-term use of chemical fertilizer will lead to a single nutrient content in the soil, which will easily lead to crop nutrient imbalance, thereby hindering the transformation and synthesis within the crop, resulting in a decline in crop quality, melon is not sweet, and vegetable is not fragrant.

3.The heavy use of chemical fertilizers also leads to the mass death of beneficial bacteria and earthworms in the soil.

4.Long-term inefficient application of chemical fertilizers often leads to excessive accumulation of certain elements in the soil, changes in soil physical and chemical properties, and environmental pollution.

5.Judging from the large use of chemical fertilizers now, the more chemical fertilizers are used, the lower the geographical advantage, and the more we rely on chemical fertilizers, forming a vicious circle.

Advantages of bio-fertilizer:

1.Improve the soil. (1) Through the proliferation of beneficial bacteria, a large number of beneficial bacteria form a dominant population around the roots of plants, reducing the life activities of other harmful bacteria.

2) Decompose soil organic matter, promote the formation of soil aggregates, loosen the soil through the activity of beneficial bacteria, and make the soil fertilizer retention, fertilizer supply, water retention, water supply and air permeability be well regulated. (3) Decompose pesticide residues in the soil to avoid pesticides causing harm to the next crop. It also breaks down harmful substances that are expelled through the roots during plant growth.

2.Functions of nitrogen fixation, phosphorus and potassium solution. A part of the nitrogen in the air can be metabolized by the growth and metabolism of beneficial bacteria to produce corresponding enzymes and acids, which can decompose the insoluble phosphorus and potassium fertilizers in the soil, thus becoming phosphorus and potassium fertilizers that can be absorbed by plants.

Therefore, the utilization rate of crops to fertilizer can be greatly improved and the amount of fertilizer applied can be reduced.

3.Improve crop quality. At the same time, it can promote the release of trace elements in the soil and be used by crops.

At the same time, beneficial bacteria metabolize and produce a variety of substances required by plants, such as small molecule amino acids, growth-promoting substances, vitamins, etc. 4.To achieve the effect of biological disease control, root irrigation can control the germs in the soil and spray them on the leaves to prevent the invasion of diseases.

4.Promote early crop maturity and prolong the harvest period. Because the physical and chemical properties of the soil are improved, the soil nutrients are rich and balanced, and the fertilizer in the soil can be better absorbed by crops, so it can promote early maturity of crops and prolong the harvest period.

5.When used in combination with organic fertilizer, the soil can be continuously improved, and the soil can reach the standard of producing organic crops in 2-3 years. Moreover, because the beneficial bacteria can quickly decompose organic matter for crop absorption, it overcomes the characteristics of slow organic fertilizer efficiency and low yield of organic fertilizer alone.

Rhizobia fertilizer. It is mainly used in leguminous plants.

Nitrogen-fixing bacteria fertilizer. It is suitable for gramineous crops, such as wheat, corn, and some for vegetables.

Phosphorus-solubilizing microbial fertilizers. It has been applied in China for many years, but the development is not fast and the application is not widespread. The reason is that there are many types of phosphorus-solubilizing microorganisms and the mechanism is not clear, and the quality of microbial agents is sometimes not guaranteed.

Potassium bacterial fertilizer. These fertilizers need to be further studied.

One is the "improver" of the soil. Microorganisms take animal and plant residues as food, decompose them into smaller and smaller organic molecules, which is the organic matter of cherry humus, which is the richest and most comprehensive plant nutrition**, it can absorb more than ten times more water than itself, and many plants need mineral nutrients such as nitrogen, phosphorus and potassium are also dissolved in it, so that the water and nutrients in nature can be more preserved in the soil. Microorganisms use humus, organic matter, and minerals (such as sand) rich in water and nutrients to build houses for their own survival—this is the agglomerate structure.

The more aggregate structure, the softer the soil, and the higher the water and fertilizer retention.

The second is the "nutrient converter". Microorganisms work hard in their own houses, absorbing and utilizing water, air, minerals and organic matter, and the decomposition and transformation of what is transformed is the various nutrients that plants can absorb! And so a miracle happened:

All kinds of plants bloom happily under the nutrient nourishment, grow vigorously and are full of vitality!

The third is the "purifier" of the soil. In the process of reproduction and metabolism, microorganisms can degrade the residual chemical fertilizers, organic pesticides, heavy metals and other pollutants in the soil, and decompose, transform, fix, transfer and new harmless synthesis of the above-mentioned pollutants in their physical and chemical reactions, so as to decompose them into low-harm or even harmless substances, thereby reducing the degree of soil pollution.

Fourth, the "best division" of the soil. Microorganisms in the soil, such as resistant microorganisms, can secrete antibiotics and inhibit the reproduction of pathogenic microorganisms, so that they can prevent and reduce the harm of soil-borne disease microorganisms in the soil to crops, and improve crop yield and quality. Crops can establish a cooperative symbiotic relationship with many beneficial bacteria, such as mycorrhizal fungi, which produce a layer of fungi on the surface of the crop root system, protecting the root system from pathogenic bacteria, and the fungus has long branches that can absorb more nutrients and share them with the root system.

For example, Bacillus thuringiensis can produce two types of toxins, namely endotoxin (associated crystalloids) and exotoxins, so that pests stop feeding, and finally the pests die due to starvation, which can help people control and control a variety of pests such as Orthoptera, Coleoptera, Diptera and Hymenoptera, especially Lepidoptera.

The fifth is the "nutritionist" of the soil. Phosphorus and potassium are needed for plant growth. However, in the soil, most of them exist in an insoluble state, such as potassium feldspar, which cannot be used by plants, while Bacillus gliosa and Bacillus giganticum are like a group of troops with iron mouths and steel teeth, slowly dissolving the hard bone of potassium feldspar, "grinding and chewing", and turning it into soluble phosphorus and potassium elements, which can be easily absorbed by plants.

Rhizobia processes the nitrogen in the air into ammonia nitrogen that can be absorbed by plants, which is continuously transported to plants to form a natural nitrogen factory for plants.