powder NPK compound 15-15-15 appearance: powder origin: Hubei province, Chna production capacity: 200,000 tons/year Specification: total nutrient: 46% min nitrogen: 15+/-1.5% available P2O5: 15+/-1.5% moisture: 2% max color: according to buyer`s requirements microelements: according to buer`s requirements Biuret: 1.5% min or less according to buyer`s requirements harmful chemicals: according to buyer`s requirements heavy metals (Cd, Cu, Cr, Pb, Hg, As, Zn, Ti, Ni): according to buyer`s requirements.
