As the development of green food, organic food, the pollution-free agricultural products in recent years, the pursuit of green agriculture and green products is higher and higher. It has been a trend that the application of organic fertilizer replaces the part chemical fertilizer with the development of modern agriculture. People pay more attention to organic fertilizer, and it gradually emerges as a industry, the traditional organic fertilizer is injected new vitality.
Organic fertilizer contains a large number of nutrients and a variety of trace elements that plant need, can supply nutrient to the plant more gentle and lasting a long aftereffect. The most important thing of the application of organic fertilizer is increasing the soil organic matter, although its content accounts for only a few percent of the total arable layer soil, it is the main material foundation for soil fertility of soil structure, and has very important effects on soil nutrient, energy, enzymes, water, ventilation and microbial activity.
Organic matters can produce and release large amount of energy in the process of degradation, and can provide energy for soil microbial growth, development, breeding activities to improve soil properties, such as the absorption property, buffer performance and resistance. The application of organic fertilizer can increase the soil organic colloid and cement soil particles together to become a stable granular structure, then to improve the soil physical, chemical and biological properties and increase the soil water retention, fertilizer maintenance and air permeability performance.
It can create a good soil environment for plant growth. The decomposition of organic fertilizer in the soil can change into various sorts of humic acid substance to promote plant enzyme activity, the material of the synthesis, transport and accumulation. Humic acid is a kind of high polymer material, cation exchange volume is high, has the very good complexing adsorption performance, and is good for heavy metal ion complexing adsorption, can effectively reduce the heavy metal ions poison of crops, and prevent it into the plant. It is good for the production of pollution-free security, health, green food .
In many varieties of organic fertilizer, fertilizer of biological organic fertilizer is worth promoting. Compared with general organic fertilizer, biological organic fertilizer is helpful in organic material fully before and after fermentation to functional production by microbial flora. Can beneficial microbial nitrogen fixation, phosphate-solubilizing, releasing, transformation of nutrients in the soil for crop use, continuous supply to the crop nutrient.
Secondly, a lot of beneficial active bacteria proliferate after fertilization, can effectively inhibit the growth of harmful microbes, produce a variety of enzymes to promote robust of crop growth, increase crop disease-resistant ability, and reduce pesticide content to ease the continuous cropping obstacle.
Moreover, a lot of beneficial bacteria directly involve in the process of the matter and energy transformation, humus soil formation and decomposition, especially in the activity of bacteria in the breeding process, a large number of extracellular polysaccharide are produced, it has adhesive effect on soil crumb structure, can effectively improve soil physical properties, increase the soil water retention, fertilizer maintenance and air permeability performance, prevent soil harden and acidification, enrich the soil fertility, improve the utilization rate of fertilizer fertilization to reduce costs, to realize a virtuous cycle of land. Unlike traditional farmyard manure, biological organic fertilizer do not contain harmful bacteria and worm eggs after high temperature rotten, avoid that the farmyard manure is easy to burn seedlings, smells rotten, plant diseases and insect pests, etc.
With the improvement of people’s living standard, people put forward new requirements for food quality. The green food that mainly use organic fertilizer are favored by the majority of consumers. The production capacity of green food increases, the demand for organic fertilizer enlarges, it creates a huge market space for organic fertilizer production.