What is the specific effect of organic fertilizer on soil fertility?
Organic fertilizer can improve soil organic matter and improve soil physical and chemical properties. Increasing the application of organic fertilizer and continuously increasing the soil organic matter content is the main link to improve soil fertility. Organic matter can increase soil aeration, water permeability, water storage and improve root growth environment, so that soil water retention and fertilizer retention capacity is enhanced.
What elements of organic fertilizer are not provided by chemical fertilizers?
Organic fertilizer provides a large amount of organic nutrients and active substances, such as amino acids, humic acids, sugars and nucleic acid degradation products, which are directly absorbed by crops and stimulate root growth. Among them, organic fertilizer contains a large number of microorganisms, which can accelerate the decomposition and circulation of organic nutrients in the soil.
A large number of chemical fertilizers or improper ratios will lead to a decline in the quality of agricultural products. The combination of organic fertilizers and chemical fertilizers can increase the protein and amino acid content of crops, and also reduce the nitrate content of vegetables and increase the content of vitamin C. The increased content of amino acids in plants helps to enhance the plant's resistance to stress and pests.
What is the role of organic fertilizers in improving the environment?
The application of organic fertilizer can reduce the amount of fertilizer used, thereby reducing the adverse effects of fertilizer on the environment. The production process of organic fertilizer is also the process of recycling waste from urban and rural organic waste into waste. In addition, the application of organic fertilizer can increase the organic matter content, enhance the adsorption of heavy metals and pesticides in the soil, and reduce its harm.
What do farmers mainly look for when buying organic fertilizer?
When looking at raw materials, it is necessary to know whether the raw materials used in the products are of high quality. At present, the organic raw materials used by organic fertilizer manufacturers are soybean meal, sesame meal, sugar residue, cassava residue, bacterial protein, amino acid, humic acid, tobacco, etc., and some calcium materials such as bone powder and shell powder are added to increase calcium. The content has obvious improvement effect on fruit tree bitter disease and water heart disease.
Second, see if the ratio of microbial strains is scientific. The excellent strains have comprehensive enzymes and high enzyme activity, and the enzymatic activities of cellulase, xylanase, polygalacturonase and polygalactose lyase secreted by the strains can meet the requirements of industrial strains. Strongly stressed. Through the addition of excellent microbial agents, the maturity cycle can be greatly shortened and the decomposing effect can be improved.
Third, see if the production line of the factory is strict. The whole production process of commercial organic fertilizer can be summarized as ingredients - decomposing - granulation - cooling - sieving - packaging, in which the degree of maturity is extremely important. Good product maturity is high, fertilizer efficiency is long-lasting; products with insufficient maturity are easy to cause crop burning.
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