| ≥1 piece |
Humic Acid Granul ar
1) Specification
App ea rance: black brown granule
Diameter: 2-4mm
Humic acid (dry base): 50%- 55%
Organic matter (dry base): 60%- 65%
NPK: 3 -5 %
Trace element: Ca, Mg, S, Cu, Zn, Mn, Mo