According to the relevant standards and norms in China, the national standards for microbial organic fertilizers mainly cover the following parts:
First of all, the Announcement of the Ministry of Agriculture on the Standards and Methods of Fertilizers (Agricultural Fertilizer Standards) is a national standard used to guide and regulate the production and use of fertilizers. The standard specifies in detail the classification, naming, technical requirements and testing methods of various types of fertilizers, which naturally include microbial organic fertilizers.
The quality grading and evaluation of organic fertilizers (GB T 21647-2008) is a standard specifically for organic fertilizers. It divides organic fertilizers into primary, secondary and ** according to key indicators such as organic matter content, microbial residues, and nutrient content, which provides a clear standard basis for the quality assessment and classification of organic fertilizers.
Considering that different regions and industries have different characteristics and needs for microbial organic fertilizers, there may also be some local or industry standards and specifications.
When selecting and using microbial organic fertilizers, we should follow the relevant national standards and regulations to ensure that the selected products meet the standards. Moreover, it is more reliable to choose microbial organic fertilizers that have passed ISO 9001 quality management system certification or organic product certification, and can better ensure the quality and stability of the product.