1) Specification Appearance: black brown powderSize: 60-80 mesh Water-solubility: 95%-97% Humic acid (dry base): 55%-60% Potassium content (K2O):  8%-10%PH:9-11 2) Packag

1) Specification Appearance: black brown powder Size: 80-100 mesh Water-solubility: 95%-97% Humic acid (dry base): 55%-60% Potassium content (K2O):  8%-10%PH:8-9 2)

1) Specification Appearance: black brown powderSize: 60-80 mesh Water-solubility: 95%-97% Humic acid (dry base): 55%-60% Potassium content (K2O):  10%-12%PH:9-11 2) Packa

1) Specification Appearance: black brown powderSize: 60-80 mesh Water-solubility: 95%-97% Humic acid (dry base): 55%-60% Potassium content (K2O):  12%-14%PH:9-11 2) Packa

1) Specification Appearance: black brown powderSize: 60-80 mesh Water-solubility:  95%-97%Humic acid (dry base): 55%-60% Potassium content (K2O):  14%-16%PH:9-11 2) Packa