Npk compound 15-15-15 Appearance: granular Origin: hubei province, chna Production capacity: 200, 000 tons/year Specification: Total nutrient: 46% min Nitrogen: 15+/-1.5% Available p2o5: 15+/-1.5% Water soluble p2o5: 70% min Granular (2-4 mm): 90% min 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.
