In recent years, with the improvement of people’s living standards, consumers’ awareness of green food has also been greatly improved. Green consumption is gradually becoming a kind of culture and fashion. Driven by this trend, food production enterprises have started to produce green food. However, the production of green food is a whole process from source to sink. It requires that the raw materials for food are green, and the green of raw materials depends on the growth environment of the crops. Green: green soil, green fertilizer, green irrigation, green atmosphere, etc. The green of fertilizers is an important part of the entire green food supply chain implementation. Due to the non-environmental nature of many fertilizers and the pollution of soil and groundwater, the use of fertilizers has to be abandoned in the production of pollution-free crops to maintain crops. The green nature, but the problem that this brings is the decline of crop production, the cost is greatly increased, the price is high, green food has become a noble food. Bio-fertilizer is just filling this gap. While increasing crop yields, it is not only completely environmental-friendly, it has no pollution during use, and it can reduce the pollution of nitrates to the ecology and reduce the existing pollution of the land. Ideal green fertilizer.
The hazards of chemical fertilizer use:
1. Chemical fertilizers do not contain organic matter and humus. Therefore, large amounts of chemical fertilizers are used. Due to the lack of organic matter and humus, the soil pellet structure is destroyed, resulting in soil compaction and a decline in agricultural and plant production.
2. The utilization rate of chemical fertilizers is low. Because nitrogen fertilizers are volatile and lost, the utilization rate is only 30%-50%, and the utilization rate of phosphate fertilizers is only 10%-25%, because the phosphate chemical activity is active and most of the phosphorus and soil are applied after the soil is applied. The cations such as Zn2+, Mg2+, Ca2+, Fe3+, and Al3+ combine to form insoluble phosphate fertilizers. The utilization rate of potassium is only about 50%.
3. The extensive use of chemical fertilizers has greatly reduced the quality of vegetables and fruits. Because crops not only need NPK, but also many trace elements such as calcium, iron, zinc, selenium and other trace elements, and the general composition of chemical fertilizers is relatively single, long-term use of chemical fertilizers will inevitably lead to a single nutrient contained in the soil, which will easily lead to crop malnutrition. As a result, the internal synthesis and synthesis of crops is hindered, which inevitably leads to a decline in crop quality.
4. Harm to human health. A large number of chemical fertilizers can easily cause excessive nitrate levels in vegetables, and nitrites and amines combine to form N-nitroso compounds as strong carcinogens.
5. The extensive use of chemical fertilizers also causes the death of many beneficial bacteria and earthworms in the soil.
6. The long-term inefficient application of chemical fertilizers often results in excessive accumulation of certain elements in the soil and changes in the physical and chemical properties of the soil and environmental pollution.
7. From the large-scale use of chemical fertilizers in China, the more chemical fertilizers are used, the lower the geographical benefits, and the more they rely on chemical fertilizers, creating a vicious circle.
The advantages of biological bacteria fertilizers:
1. Improve the soil. (1) Through the proliferation of beneficial bacteria, a large number of beneficial bacteria form dominant populations around the roots of plants, inhibiting the life activities of other harmful bacteria. (2) Rapidly decompose organic matter in the soil, promote the formation of soil aggregates, and loosen the soil through the activities of beneficial bacteria. The soil fertility, fertilizer supply, water conservation, water supply, and gas permeability are well adjusted. (3) Decompose the pesticide residues in the soil to avoid residual pesticides causing phytotoxicity to the next crop. It also decomposes the harmful substances emitted from the roots during plant growth.
2. Fix nitrogen, dissolve phosphorus, and release potassium. It can partially utilize the nitrogen in the air to produce the corresponding enzymes and acids through the growth and metabolism of beneficial bacteria, and can decompose the insoluble phosphate and potassium fertilizers in the soil (95% of the insoluble phosphate fertilizer in the soil, and 98% of the insoluble potassium). As a result, the plants can absorb phosphorus and potassium fertilizers. Therefore, the utilization of fertilizers by crops can be greatly increased, thereby reducing the application of fertilizers. '
3. Improve crop quality. Phosphorus-release and potassium-removal can also promote the release of trace elements in soil and be used by crops. At the same time, beneficial bacteria can metabolize and produce substances needed for various plants, such as small molecule amino acids, growth stimulants, and vitamins.
4. To achieve the effect of biological control diseases, irrigating the root can inhibit the bacteria in the soil and spray it on the leaf surface to prevent the invasion of the disease.
5. Promote early crop maturity and extend harvest time. As the physical and chemical properties of the soil are improved, the soil nutrients are abundant and balanced, and the fertilizer in the soil can be better absorbed by the crops, which can promote the early maturity of the crop and extend the harvest period.
6. In combination with organic fertilizer, it can continuously improve the soil. In 2-3 years, the soil can fully meet the standards for producing organic crops, and because the beneficial bacteria can rapidly decompose organic substances into crops, the organic fertilizer fertilizer efficiency is overcome. The characteristics of slow, single application of low organic fertilizer production characteristics.
7. Bio-fertilizer is not like chemical fertilizer. It will bring in excess soluble nutrients into the soil at one time. The biological bacterial fertilizer can avoid environmental pollution, and the beneficial bacteria constantly reproduce and metabolize around the plant roots. Continuous, non-excessive Provide nutrition to crops.
8. The use of bio-fertilizer is small, which saves the handling power.
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