High-quality organic fertilizer granules: Meeting the 2026 procurement standards of 15N hardness and 30% organic matter content.
In short: High-quality organic fertilizer granules must meet two parallel requirements by 2026: first, the mandatory agricultural industry standard NY/T 525-2021 (organic matter content ≥30%, moisture content ≤30%, pH value 5.5-8.5, heavy metal content limit); second, physical durability benchmarks, namely compressive strength ≥15 Newtons and particle size ≥90%. Products that simultaneously meet the chemical and mechanical performance requirements are eligible to participate in government procurement tenders and receive a premium; particle hardness directly determines the resistance to caking during storage and the uniform release of nutrients in the field.
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