What is organic fertilizer?

Organic fertilizer refers to farmyard manure, which contains a lot of biomass, animal and plant residues, excrement, biological waste and other substances. Applying organic fertilizer can not only provide comprehensive nutrition for crops, but also have long fertilizer effect, which can increase and update soil organic matter, promote microbial reproduction, improve soil physical and chemical properties and biological activity, and is the main nutrient source for green food production. Compost is an organic fertilizer which is made of all kinds of orange stalks, fallen leaves, grass, animal and plant residues, human and animal manure as raw materials and mixed with a small amount of soil. Compost compost is made of the same raw materials as compost, but fermented under submerged conditions. Manure refers to the manure of pigs, cattle, horses, sheep, chickens, ducks and other livestock and poultry, which is made of manure and straw padding. Biogas fertilizer in a sealed biogas digester, the by-products after decomposition of organic matter produce biogas, including biogas liquid and residue. Green manure uses cultivated or wild green plants as fertilizer. Such as leguminous mung beans, broad beans, sweet clover, sesbania, alfalfa, vetch seeds and so on. Non-leguminous green manure includes ryegrass, radish, sunflower seed, manjianghong, water hyacinth, water peanut and so on. Crop Straw Crop Straw is one of the important organic fertilizers. Crop Straw contains N, P, K, Ca, S and other nutrients necessary for crops. Under suitable conditions, these elements are mineralized and then returned to the soil for absorption and utilization by crops through the action of soil microorganisms. Cake fertilizer rapeseed cake, cottonseed cake, bean cake, sesame cake, castor cake, tea seed cake, etc. Mud fertilizer Pollution-free river mud, pond mud, ditch mud, harbor mud, lake mud, etc.