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See Chinese contents: GB/T 18877-2020 GB/T 18877-2020: Organic inorganic compound fertilizer
This Standard specifies the terms and definitions, technical requirements, sampling, test methods, inspection rules, marks and quality certificates, packaging, transportation and storage for organic inorganic compound fertilizer. This Standard is applicable to the organic inorganic compound fertilizer that is made by organic materials such as human and livestock manure, animal and plant residues, scraps of agricultural products processing, through fermentation and harmless treatment, added with inorganic fertilizer.
