T/CPFIA 0016-2025 Microbial compound fertilizer

Scope

Scope: This document specifies the terms and definitions, requirements, sampling, test methods, inspection rules, labeling and quality specifications, packaging, transportation, and storage for compound fertilizers containing microorganisms. This document applies to compound fertilizers containing microorganisms. Main technical content: 4.3 Technical Indicators The technical indicators shall comply with Table 1 and the requirements for product packaging labels: Table 1 Technical Indicators of Compound Fertilizers Containing Microorganisms Item Standard Total Nutrients a (N + P2O5 + K2O), % ≥25.0 Water-soluble phosphorus accounting for the percentage of effective phosphorus b, % ≥60 Nitrate nitrogen c, % ≥1.5 Moisture (H2O), % ≤2.0 Particle size d (1.00-4.75mm or 3.35-5.60mm), % ≥90 Effective viable bacteria count (CFU) e, billion/g ≥0.2 Shelf life of effective viable bacteria f, months ≥18 Impurity rate, % ≤30 Chloride ion g, % Products not labeled as "chlorine-free" ≤3.0 Products labeled as "chlorine-free (low chlorine)" ≤15.0 Products labeled as "chlorine-free (medium chlorine)" ≤30.0 Single trace element h (in elemental form), % Effective calcium ≥1.0 Effective magnesium ≥1.0 Total sulfur ≥2.0 Single trace element i (in elemental form), % ≥0.02 a The single nutrient content of the product shall not be less than 4.0%, and the absolute value of the negative deviation between the measured value and the declared value of a single nutrient shall not exceed 1.5%. b If it is a nitrogen-potassium binary fertilizer, the item "Water-soluble phosphorus accounting for the percentage of effective phosphorus" shall not be tested and judged. c When the packaging container is labeled as "containing nitrate nitrogen", this item shall be tested. d The particle size of special-shaped or larger-particle products may be determined by the supplier and the buyer.

Development Information

Related Standards