Home / Standards / GB/T 34765-2024 GB/T 34765-2024 Active Fertilizers and soil conditioners—Determination of fulvic acid content and carbon coefficient 肥料和土壤调理剂 黄腐酸含量及碳系数的测定方法 Standard Type GBT ICS 65.080 CCS G 20 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A