Comparison of the effects of microbial fertilizers and fertilizers

One, the side effect of fertilizer.

1. Fertilizer does not contain organic matter or humus, so a large number of fertilizers are used. Due to the lack of organic matter and humus in soil, the soil aggregate structure is damaged, resulting in soil consolidation and crop yield decline.

2. The utilization rate of fertilizers is low. Due to the volatility and loss of nitrogen fertilizer, the utilization rate of nitrogen fertilizer is only 30%-50%, and the utilization rate of phosphate fertilizer is only 10%-25%.Potassium utilization is only about 50 percent.

The quality of vegetables and fruits has been greatly reduced by the heavy use of chemical fertilizer.Because the crops not only need NPK, at the same time also need many trace elements such as zinc, selenium, calcium iron and fertilizer general component is single, so long-term use of chemical fertilizer will lead to soil nutrients contained in a single, easy to make crop nutrition disorders, resulting in crop synthetic internal transformation, inevitably led to the decrease of the quality of crops, the melon is not sweet, food is not sweet.

Harm human health.A large number of chemical fertilizers are easy to make the nitrate content in vegetables exceed the standard, and the combination of nitrite and amine substances to form n-nitroso compounds is a strong carcinogen.

5. The heavy use of chemical fertilizers also causes a large number of deaths of beneficial bacteria and earthworms in the soil.

6. Long-term inefficient application of fertilizers often results in excessive accumulation of certain elements in soil, changes in soil physical and chemical properties and environmental pollution.

7. Judging from the massive use of chemical fertilizers in China, the more chemical fertilizers are used, the more the land will be reduced and the more the land will be dependent on chemical fertilizers, thus forming a vicious circle.

Second, the advantages of biological bacterial fertilizer.

1. Improve soil.

Through the proliferation of beneficial bacteria, a large number of beneficial bacteria form dominant population around the root system of plants and inhibit the life activities of other harmful bacteria.

Rapid decomposition of soil organic matter, promote the formation of soil aggregates, and through the activities of beneficial bacteria can loosen the soil, soil fertilizer, fertilizer, water, water supply and permeability are well regulated.

Decompose pesticide residues in soil to prevent pesticide residues from causing harm to next season crops.It also decomposes harmful substances discharged by roots during plant growth.

2. Functions of nitrogen fixation, phosphorus and potassium fixation.

It can partially utilize nitrogen in the air to produce corresponding enzymes and acids through the growth and metabolism of beneficial bacteria, decompose the insoluble phosphorus and potassium fertilizer in the soil (the insoluble phosphate fertilizer in the soil accounts for 95% and the insoluble potassium accounts for 98%), and thus become the phosphate and potassium fertilizer that can be absorbed by plants.Therefore, the utilization rate of fertilizer can be greatly improved, so as to reduce the application of fertilizer.

3. Improve crop quality.

Hydrolysis. Phosphorus and potassium can promote the release of trace elements in the soil, which are used by crops. At the same time, beneficial bacteria metabolize and produce various substances needed by plants, such as small molecular amino acids, growth stimulants and vitamins.

4. To achieve the effect of biological control of diseases, root irrigation can inhibit bacteria in the soil, spray to the leaf surface, can prevent the invasion of diseases.

5. Promote early maturity of crops and extend the harvest period.Due to the improvement of soil physical and chemical properties, the soil nutrients are rich and balanced, and the fertilizers in the soil can be better absorbed by crops, which can promote the early maturity of crops and extend the harvest period.

Comparison of the effects of microbial fertilizers and fertilizers

6. In combination with organic fertilizer, the soil can be continuously improved, and within 2-3 years, the soil can completely meet the standard of organic crop production. Moreover, because beneficial bacteria can rapidly decompose organic substances for crop absorption, the characteristics of slow efficiency of organic fertilizer and low yield of organic fertilizer applied alone are overcome.

7. Unlike chemical fertilizers, biological bacterial fertilizers bring excessive soluble nutrient elements into the soil at one time. Biological bacterial fertilizers can avoid environmental pollution, and beneficial bacteria continuously reproduce and metabolize around plant roots, so as to continuously provide nutrients to crops without excessive amount.