Most of the domestic understanding of organic fertilizer is that through the action of microbial fermentation under certain moisture, C/N and ventilation conditions, organic fertilizer changes from an unstable state to a stable state through the composting process.
At present, there is no widely recognized definition of organic fertilizer. Organic fertilizers are available as an organic fertilizer or soil amendment product.
What is organic fertilizer
Broadly speaking: commonly known as farmyard manure, it includes various animal and plant residues or metabolites as raw materials, such as human and animal excrement, straw, animal residues carcasses, slaughterhouse waste, etc. It also includes cake fertilizer (rapeseed cake, cottonseed cake, bean cake, sesame cake, castor cake, tea seed cake, etc.), compost, retting fertilizer, stable manure, biogas fertilizer, green manure, etc. It mainly uses the supply of organic matter as a means to improve the physical and chemical properties of the soil, promote plant growth and the cycle of the soil ecosystem.
What is organic fertilizer?
In a narrow sense: it specifically refers to various animal wastes (including animal manure; animal processing wastes) and plant residues (cake fertilizers; crop straws) ; fallen leaves; dead branches; peat, etc.) as raw materials, using physical, chemical, biological or a combination of the three treatment technologies, and through certain processing techniques (including but not limited to stacking; high temperature; anaerobic, etc.) to eliminate the A type of fertilizer that is formed when harmful substances (pathogens, eggs of diseases and insect pests, weed seeds, etc.) reach harmless standards and complies with relevant national standards (NY 525-2012) and regulations.
After processing biological materials, animal and plant wastes, and plant residues, organic fertilizers have eliminated toxic and harmful substances and are rich in a large number of beneficial substances, including: a variety of organic acids, peptides, and nitrogen. Rich in nutrients including , phosphorus and potassium. It can not only provide comprehensive nutrition for crops, but also has a long-lasting fertilizer effect. It can increase and renew soil organic matter, promote microbial reproduction, and improve the physical and chemical properties and biological activity of soil. It is the main nutrient for green food production.