The most prominent role of
organic fertilizer is to improve soil organic matter. The organic matter in the soil can significantly improve the physical and chemical properties of the soil, make the soil arable, enhance the percolation capacity, improve the soil water storage, fertilizer retention, fertilizer supply and drought and flood resistance, and increase the yield significantly, which cannot be replaced by chemical fertilizers. Organic fertilizer can not only stop the deterioration of ecological environment and improve the quality of environment, but also play a great role in agricultural production.
I. Improve the fertilizing Effect of Soil
The trace elements in the soil are 95% in insoluble form and cannot be absorbed and used by plants, while the metabolic products of microorganisms contain a large number of organic acids, which are like hot water added to ice cubes and can quickly dissolve trace elements such as calcium, magnesium, sulfur, copper, zinc, iron, boron, molybdenum and other essential plant minerals into nutrients that can be directly absorbed and used by plants, greatly increasing the fertilizing capacity of the soil. This greatly increases the fertilizing capacity of the soil.
The organic matter in organic fertilizers increases the organic matter content of the soil, making the soil less cemented and the sandy soil more water- and fertilizer-retentive, so that the soil forms a stable agglomerate structure and can play a good role in coordinating the supply of fertility. With organic fertilizer, the soil will become loose and fertile.
II. Improve Soil Quality and Promote Soil Microbial Reproduction
Organic fertilizer can make the soil microorganisms multiply, especially many beneficial microorganisms, such as nitrogen-fixing bacteria, ammonia bacteria, cellulose-decomposing bacteria, etc.. These beneficial microorganisms, which can decompose the organic matter in the soil, increase the agglomerate structure of the soil and improve the soil composition.
Microorganisms multiply very fast in the soil, and they are like a big invisible web of intricacies. After the microorganisms die, they leave a lot of microscopic pipes in the soil. These microscopic pipes not only increase the permeability of the soil, but also make the soil fluffy and soft, and nutrient water is not easily lost, increasing the soil's ability to store water and fertilizer, and avoiding and eliminating soil slumping.
The beneficial microorganisms in organic fertilizer can also inhibit the reproduction of harmful germs, so that less drugging can be done, and if applied continuously for many years, it can effectively inhibit soil pests, saving labor, money and pollution.
At the same time, organic fertilizers have various active enzymes secreted by the digestive tract of animals, as well as various enzymes produced by microorganisms. These substances, when applied to the soil, can greatly improve the enzymatic activity of the soil. Long-term and lasting use of organic fertilizer can improve the quality of the soil. Fundamentally improve the quality of the soil, there is no fear of not growing quality fruit.
III.To Provide Crops with the Full Range of Nutrients Needed to Protect the Rootstock of Crops
Organic fertilizers contain a large number of nutrients, trace elements, sugars and fats needed by plants.
The CO2 released from the decomposition of organic fertilizer can be used as 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 organic fertilizer decomposition in the soil, can be transformed into the formation of a variety of humic acid is a polymeric substance, has a good complex adsorption properties, heavy metal ions have a good complex adsorption effect, can effectively reduce the poisoning of heavy metal ions on crops, and prevent it from entering the plant, and to protect the rootstock of plant humic acid substances.
IV.Enhance Crop Disease Resistance, Drought Resistance, Flood Tolerance
Organic fertilizer contains vitamins, antibiotics, etc., which can enhance the resistance of crops and reduce or prevent the occurrence of diseases. After organic fertilizer is applied to the soil, it can enhance the water storage and water retention capacity of the soil, and in the case of drought, it can enhance the drought resistance of crops.
At the same time, organic fertilizer can also make the soil loose, improve the ecological environment of crop roots, promote the growth of roots, enhance root vitality, improve the crop's ability to tolerate flooding, reduce the mortality of plants, and improve the survival rate of agricultural products.
V. Improve the safety and greenness of food
The state has long explicitly stipulated: the agricultural production process must limit the excessive use of inorganic fertilizers, organic fertilizers are the main source of fertilizer for the production of green food. Because the organic fertilizer in a variety of nutrients more complete, and these substances are completely non-toxic, harmless, non-polluting natural substances, which provides the necessary conditions for the production of high-yielding, high-quality, non-polluting green food. The aforementioned humic acid substances can reduce the harm of heavy metal ions to plants, which is also equivalent to reducing the harm of heavy metals to human beings.
VI.Improve Crop Yield
The beneficial microorganisms in organic fertilizer use the organic matter in the soil to produce secondary metabolites, which contain a large number of growth-promoting substances. Such as growth hormone, can promote plant elongation and growth, abscisic acid can promote fruit ripening, gibberellin can promote flowering and fruiting, increase the number of flowers, fruit retention rate, improve yield, make the fruit full, color and tender, but also early market, to increase production and income.
VII.Reduce Nutrient Loss and Improve the Utilization Rate of Chemical Fertilizer
The actual utilization rate of chemical fertilizer is only 30% to 45%. Part of the lost fertilizer decomposition released into the atmosphere, part of it is lost with the soil and water, and part of it is fixed in the soil, can not be directly absorbed and used 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, thus reducing the loss of nutrients. Together with the effect of beneficial microorganisms in solving phosphorus and potassium, it can increase the effective utilization rate of chemical fertilizers to more than 50%.
The advantages of organic fertilizer illustrate its irreplaceability. Compared with chemical fertilizers, people will accordingly prefer organic fertilizers in the future, and the widespread use of organic fertilizers effectively reduces the cost of agricultural production, reduces environmental pollution, and meets the requirements of sustainable development of modern agriculture.