1. Improve the soil fertility
95% of trace elements in soil exist in insoluble form and cannot be absorbed and utilized by plants. However, microbial metabolites contain a large number of organic acids. These substances are like hot water added in ice. Trace elements such as calcium, magnesium, sulfur, copper, zinc, iron, boron and molybdenum can be dissolved quickly, and can be directly absorbed by plants The nutrient elements used greatly increase the ability of soil to supply fertilizer.
Organic matter in organic fertilizer increases the content of organic matter in soil, which makes soil bond degree decrease, and soil water conservation and fertilizer retention performance becomes stronger. Therefore, the soil forms a stable granular structure, so that it can play a good role in coordinating supply of fertility. With organic fertilizer, the soil will become loose and fertile.
2. Improve soil quality and promote soil microbial reproduction
Organic fertilizer can make the microorganisms in soil propagate in large quantities, especially many beneficial microorganisms, such as nitrogen fixing bacteria, ammoniation bacteria, cellulose decomposing bacteria, etc. These beneficial microorganisms can decompose the organic matter in the soil, increase the soil particle structure and improve the soil composition.
Microorganisms are growing very fast in the soil, they are like a large invisible net, intricate. After the bacterial death of microorganisms, many micro pipelines were left in the soil. These micro pipelines not only increased the permeability of soil, but also made the soil become fluffy and soft, and the nutrient and water were not easy to lose, which increased the soil storage and fertilizer storage capacity, and avoided and eliminated the soil binding.
The beneficial microorganisms in organic fertilizer can also inhibit the reproduction of harmful bacteria, so that less drug administration can be achieved. If applied for many years, it can effectively inhibit soil harmful organisms, save labor, money and pollution.
At the same time, there are various active enzymes secreted by the digestive tract of animals and various enzymes produced by microorganisms in organic fertilizer. These substances can greatly improve the enzyme activity of soil after they are applied to the soil. The long-term and long-term use of organic fertilizer can improve the quality of soil. Fundamentally improve the quality of soil, we are not afraid to plant high-quality fruits.
3. Provide comprehensive nutrition for crops and protect the roots of crops
Organic fertilizer contains a large number of nutrients, trace elements, sugars and fats needed by plants. The CO2 released by decomposition of organic fertilizer can be used as a material for photosynthesis.
Organic fertilizer also contains 5% of nitrogen, phosphorus and potassium, and 45% organic matter, which can provide comprehensive nutrition for crops.
At the same time, it is necessary to mention that organic fertilizer is decomposed in soil, and can be transformed into various humic acids. It is a kind of high molecular material, which has good complexation adsorption performance, good complexation adsorption effect on heavy metal ions, can effectively reduce the toxicity of heavy metal ions to crops, prevent it from entering the plant, and protect the rhizome of humic acid substances.
4. Enhance the resistance, drought and waterlogging resistance of crops
Organic fertilizer contains vitamins, antibiotics, etc., which can enhance the resistance of crops, reduce or prevent the occurrence of diseases. When organic fertilizer is applied to soil, it can enhance the water storage and water conservation capacity of soil, and in the drought situation, it can enhance the drought resistance of crops.
At the same time, organic fertilizer can also make soil loose, improve the ecological environment of crop root system, promote the growth of root system, enhance root vitality, improve the waterlogging tolerance of crops, reduce the mortality of plants, and improve the survival rate of agricultural products.
5. Improve the safety and green of food
The state has already stipulated that the excessive use of inorganic fertilizer must be restricted in the agricultural production process, and organic fertilizer is the main fertilizer source for the production of green food.
Because the nutrients in organic fertilizer are quite complete, and these substances are non-toxic, harmless and pollution-free natural substances, this provides the necessary conditions for the production of high-yield, high-quality and pollution-free green food. The humic acid substances mentioned above can reduce the harm of heavy metal ions to plants, and also reduce the harm of heavy metals to human body.
6. Increase crop yield
The beneficial microorganisms in organic fertilizer use the organic matter in soil to produce secondary metabolites, which contain a large number of growth promoting substances.
For example, auxin can promote plant elongation and growth, abscisic acid can promote fruit ripening, gibberellin can promote flowering and fruit setting, increase flowering number, fruit retention rate, increase yield, make fruit plump, fresh and tender color, and can be listed early to achieve yield increase and income.
7. Reduce nutrient loss and improve fertilizer utilization rate
The actual utilization rate of chemical fertilizer is only 30% - 45%. Some of the lost fertilizer is released to the atmosphere, some of which are lost with the water and soil flow, and some are fixed in the soil, which can not be absorbed and utilized directly by plants.
When organic fertilizer was applied, the soil structure was improved by beneficial biological activities, and the ability of soil water conservation and fertilizer conservation was increased, thus reducing the loss of nutrients. The effective utilization of fertilizer can be increased to more than 50% by the action of beneficial microorganism to remove phosphorus and potassium.
In conclusion, the seven contributions of organic fertilizer to agriculture show its advantages. With the improvement of people's pursuit of food safety and quality of life, the development of green agriculture will accelerate the application of organic fertilizer in the future, and also meet the requirements of sustainable development of modern agriculture.
Post time: May-06-2021