Contribution of organic fertilizer to agriculture

1.Improve soil fertility. 95% of the trace elements in the soil exist in insoluble form and cannot be absorbed and utilized by plants. Microbial metabolites contain a large amount of organic acids, which are like heat added to ice. Just like water, it can quickly dissolve trace elements such as calcium, magnesium, sulfur, copper, zinc, iron, boron, molybdenum and other essential mineral elements for plants, and turn them into nutrients that can be directly absorbed and utilized by plants, greatly increasing the soil. Of fertilizer supply capacity. The organic matter in the organic fertilizer increases the organic matter content in the soil, which reduces the soil cohesiveness and strengthens the water and fertilizer retention performance of sandy soil, so that the soil forms a stable aggregate structure and can exert good fertility coordination and supply capacity. After using organic fertilizer, the soil will become loose and fertile.

2.Improve soil quality and promote the reproduction of soil microorganisms. Organic fertilizers can make the microorganisms in the soil multiply, especially many beneficial microorganisms, such as nitrogen-fixing bacteria, ammonifying bacteria, and cellulose decomposing bacteria. . These beneficial microorganisms can decompose the organic matter in the soil, increase the soil aggregate structure, and improve the soil composition. Microorganisms multiply very fast in the soil, they are like an invisible web, intricately intricate. After the death of the microbial cells, many tiny pipes are left in the soil. These tiny pipes not only increase the air permeability of the soil, but also make the soil fluffy and soft, and the nutrients and water are not easily lost, which increases the soil water storage. Fertilizer capacity avoids and eliminates soil compaction. The beneficial microorganisms in the organic fertilizer can also inhibit the reproduction of harmful bacteria, so that less spraying can be achieved. If applied continuously for many years, it can effectively inhibit soil harmful organisms, saving labor, money, and pollution. At the same time, organic fertilizer contains various active enzymes secreted by the digestive tract of animals and various enzymes produced by microorganisms. After these substances are applied to the soil, the soil enzyme activity can be greatly improved. Long-term use of organic fertilizer can improve the quality of the soil. The fundamental improvement has improved the quality of the soil, and there is no fear that high-quality fruits will not be planted.

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 from the decomposition of organic manure can be used as a material for photosynthesis. Organic fertilizer also contains 5% of nitrogen, phosphorus, and potassium, and 45% of organic matter, which can provide comprehensive nutrition for crops. At the same time, it must be mentioned that the organic fertilizer is decomposed in the soil and can be transformed into various kinds of humic acid. It is a kind of macromolecule substance with good complex adsorption performance and a good complex adsorption effect on heavy metal ions. , Can effectively reduce the poisoning of heavy metal ions to crops, prevent them from entering the plants, and protect the rhizomes of humic acid substances.

4.Enhance crop resistance to disease, drought, and waterlogging. Organic fertilizer contains vitamins, antibiotics, etc., which can enhance crop resistance and reduce or prevent disease. After the organic fertilizer is applied to the soil, it can enhance the water retention capacity of the soil, and can enhance the drought resistance of crops in drought conditions. At the same time, organic fertilizer can also loosen the soil, improve the ecological environment of crop roots, promote root growth, enhance root vitality, improve crop tolerance to waterlogging, reduce plant mortality, and increase the survival rate of agricultural products.

5.Improving the safety and greenness of food The country has long clearly stipulated that the excessive use of inorganic fertilizers must be restricted in the agricultural production process, and organic fertilizers are the main source of fertilizer for the production of green food. Since the various nutrients in organic fertilizers are relatively complete, and these substances are completely non-toxic, harmless, and non-polluting natural substances, this provides the necessary conditions for the production of high-yield, high-quality, and pollution-free green food. The aforementioned humic acid substances can reduce the harm of heavy metal ions to plants, which is equivalent to reducing the harm of heavy metals to the human body.

6.The beneficial microorganisms in the organic fertilizer to increase crop yield use the organic matter in the 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 maturity, gibberellin can promote flowering and fruit setting, increase the number of flowering, fruit retention, increase yield, make the fruit plump, fresh and tender, and can be marketed early. Increase production and income.

Reduce nutrient loss and improve fertilizer utilization. The actual utilization rate of fertilizer is only 30%-45%. Part of the lost chemical fertilizer is decomposed and released into the atmosphere, part is lost with water and soil, and part is fixed in the soil and cannot be directly absorbed by plants. When organic fertilizer is applied, the beneficial biological activities improve the soil structure and increase the soil’s ability to retain water and fertilizer, thereby reducing the loss of nutrients. Coupled with the effect of the beneficial microorganisms to dissolve phosphorus and potassium, the effective utilization rate of chemical fertilizers can be increased to more than 50%. The advantages of organic fertilizer show its irreplaceability. Compared with chemical fertilizer, people will choose organic fertilizer accordingly in the future. The extensive use of organic fertilizer can effectively reduce agricultural production costs and reduce environmental pollution, which is in line with the requirements of sustainable development of modern agriculture.