Home / Standards / GB/T 17980.21-2026 GB/T 17980.21-2026 Upcoming Pesticide—Guidelines for the field efficacy trials—Part 21:Fungicides against seed-borne diseases of cereals 农药 田间药效试验准则 第21部分:杀菌剂防治禾谷类种传病害 Standard Type GBT ICS 65.100 CCS B 17 Status 即将实施 Issue Date 2026-02-27 Implementation 2026-09-01 Responsible Dept 农业农村部 Drafting Unit N/A