Active ingredient: Total nitrogen (N) 3.0%, phosphorus pentoxide (P2O5) water-soluble 11.0%, potassium oxide (K2O) water-soluble 38.0%, magnesium oxide (MgO) water-soluble 4.0%, sulfur trioxide (SO3) water-soluble 25.0%, boron (B) water-soluble 0.02%, copper (Cu) water-soluble and chelated (EDTA) 0.07%, copper (Cu) water-soluble and chelated (EDTA) 0.005%, iron (Fe) water-soluble and chelated (EDTA) 0.07%, manganese (Mn) water-soluble and chelated (EDTA) 0.03%, zinc (Zn) water-soluble and chelated (EDTA) 0.01%
Master 3-11-38+4 is a complex fertilizer rich in potassium that provides an optimal balance of nitrogen and phosphorus during the growing season.












