• Guaranteed Analysis
Total Nitrogen (N) 17%
Ammoniacal nitrogen (N-NH4) 0.8%
Urea nitrogen (Ur-N) 16.2%
Available Phosphate (P205) 3%
Soluble Potash (K20) 6%
Magnesium (Mg) 3.7%
Water soluble 3.5%
Sulfur (S) 17.7%
Iron (Fe) 0.93%
Manganese (Mn) 0.30%
Water soluble 0.20%
Copper (Cu) 0.050%
Zinc (Zn) 0.150%
Water soluble 0.090%

Product Code


Osmocote Blend 17-3-6, 4-6M Topdress


  • Advantages
  • Recommended Rates
  • Directions
  • Download Product Sheet
  • quickly absorbed for an extra boost of nutrition when needed
  • consistent release and accurate longevity across multiple temperature ranges
  • highly efficient nutrient delivery promotes robust growth and maximum economy
  • dual coatings reduce nitrogen leeching and decompose with minimal environmental impact
  • fortified with STEP Hi-Mag micronutrients
Recommended Rates

Contact your local ICL-SF Territory Manager for recommended rates.

  • verify product analysis, longevity and rate for plants in your production system (for assistance, contact your regional ICL-SF Territory Manager or call ICL-SF Customer Service at 800-492-8255)
  • consult rate tables printed on bag labels and product sheets
  • for incorporation, blend into growing media to ensure uniform distribution of cores
  • do not over-mix (doing so could damage fertilizer coating)
  • growing media should be used within two to four weeks after incorporating fertilizer
  • for top-dress applications, spread fertilizer evenly on container surface (avoid piling fertilizer directly against plant stem)
  • irrigate after application (irrigation frequency and volume should be adjusted during the crop production cycle according to crop type, environmental conditions and desired soluble salt levels)
  • a product trial is recommended before adopting a new fertilizer program or making full-scale changes to standard cultural practices (test several rates on representative plant types)
  • use caution when applying to plants being over-wintered under cover (if you can't monitor soluble salts and/or adjust irrigation practices, avoid Fall and Winter applications
  • store in a clean, cool, dry place
Poly-S coating technology consists of nutrient-packed fertilizer cores with sulfur and polymer coatings regulated by microbial diffusion, not temperature. When activated, nutrition is delivered at a constant, balanced rate regardless of climate or temperature swings. Topdress formulation provides an extra boost of nutrition for quick green-up prior to selling season or any other time during the year.