Product feature: Black or brown flake, water soluble, good resistance to hard water, no ferrous
flocculation or deposit
Main ingredient: HA(dry basis)≥50%, FA≥10%, K2O≥8%, moisture≤15%, insoluble substance≤5%.
Application: Can be added into all kinds of foliar fertilizer, special purpose fertilizer or drought–resisting fertilizer.
Packing: 20kg/bag