T/HNX 003-2020 Water-retaining soil-conditioning fertilizer with mixed function

Scope

Main technical contents: **Project Targets**: - Total nutrient content (N + P2O5 + K2O) in mass fraction, a, % ≥ 35 - Water-soluble phosphorus as a percentage of total effective phosphorus, b, % ≥ 60 - Moisture content, % ≤ 2.0 - Particle size (2.00–4.00 mm), % ≥ 70 - Chloride ion content, c, % ≤ 3.0 - Major and trace element nutrient content (in elemental form), d, % ≥ 2.0 - Microelement nutrient content (in elemental form), e, % ≥ 0.02 - Drought-resistant and water-retaining soil fertilizer enhancer content, % ≥ 5.0 **Requirements**: - The mass fraction of each nutrient in the product must not be lower than 4.0%, and the absolute deviation between the measured and declared values of each nutrient must not exceed 1.5%. - For phosphate fertilizers based on calcium-magnesium phosphate and labeled as "chelate phosphate" on the packaging, the "water-soluble phosphorus as a percentage of total effective phosphorus" indicator may be exempted from control. Similarly, for nitrogen-potassium binary fertilizers, the same indicator may also be exempted from control. - If the packaging indicates "contains chloride", this indicator will not be tested. - If the packaging indicates the presence of calcium, magnesium, sulfur, copper, iron, manganese, zinc, boron, or molybdenum, these indicators will be tested.

Development Information

Related Standards