10 2 10feFINE50lb 600wide

Suståne®10-2-10 with Iron Greens Grade Natural Based Slow Release Nitrogen Fertilizer.

Label Spec Sheet MSDS


Suståne 10-2-10 Natural Based Fertilizer is Suståne’s finest Greens Grade fertilizer (100 SGN) with Suståne organic, methylene urea, potassium sulfate and chelated iron.

Recommended Use:

Suståne 10-2-10+Fe is designed for use as a stand alone putting green fertilizer or as the background fertilization for a liquid feeding program. Suitable for use on all turfgrass types providing quick green up followed by long lasting slow release organic nitrogen. Use where even growth and color is needed for eight to ten weeks.

Benefits of Suståne 10-2-10 + Fe

  • Fast green up from 20% quick release water-soluble nitrogen
  • Long-lasting 80% slow release nitrogen from organic N and mthylene urea
  • Organically chelated iron for slow release, deep green color
  • Built on Sustane compost base wth the standard 1:1 N to K ratio to match plant uptake requirements
  • Will not burn or cause excessive top growth
  • Homogenous 1 mm particles - each particle contains all components
  • Fast, uniform coverage penetrates into turf canopy with light irrigation
  • Increases the nutrient and water holding capacity of the soil
  • Strengthens plants tolerance against hot dry conditions
  • Promotes greater root development
  • Improves buffering against changes in soil pH
  • Increases the soil’s ability to suppress plant pathogens
  • Increases soil porosity and stability for greater root development and water holding capacity

Always Safe for Plants, People and the Environment

  • Manufactured by Suståne in the USA at an EPA permitted facility.
  • Pathogen and weed free, no blood or bone products. Allowed for export to over 60 countries world wide.
  • Aerobic composting eliminates animal and rodent attraction to application site.
  • Contains naturally occurring beneficial bacteria and fungi that are necessary to begin nutrient life cycle in poor soil.
  • Suståne is fully composted eliminating the need for sterilization, permitting a healthy environment for beneficial microbial populations.

Guaranteed Analysis

Total Nitrogen (N) 10%
1.1% Ammoniacal Nitrogen
0.8% Urea Nitrogen*
3.4% Other Water Soluble Nitrogen*
4.7% Water Insoluble Nitrogen*
Available Phosphate (P2O5) 1%
Soluble Potash (K2O) 10%
Calcium (Ca) 1%
Sulfur (S) 5%
Iron (Fe) 2%

Total Plant Nutrition

Humic Acid 7%
Organic Matter 50%
pH 6.8
Carbon:Nitrogen (C:N) 4:1
Bulk Density lb./cu. ft 39
Salt Index (scale 1-100) 3
% of Total N as Slow Release 80%

Derived from aerobically composted turkey litter, ammonium sulfate, methylene urea, and sulfate of potash.
*8.1% slowly available nitrogen from aerobically composted turkey litter and methylene Urea

Availble Particle Sizes:

  • Fine Grade, 100 SGN (1.4 mm - 0.6 mm)


  • 50 lb. covers 5000 f2 @ 1 lb. N per 1000 ft2 (44 lb. N per acre)
  • 22.67 kg covers 465 m2 @ 0.5 kg N per 100 m2 (50 kg N per hectare)


  • Apply 10 lb. per 1000 ft2
  • Apply 50 g per 1 m2

Suståne Integrated Soil Management Program:

The following chart shows the recommended amounts of Suståne 10-2-10+Iron for a typical integrated putting green fertilization program.

Uses & Application:Greens & TeesFairways, Athletic Fields, Parks & Lawncare
Rate (lb./1,000 ft2) Application Frequency Rate (lb./1,000 ft2) Application Frequency
Early Feeding 5-10 1-2 5-10 1-2
Turf Establishment 7-12 2 5-10 2
Summer Stress/Disease Prevention 5-10 Monthly 5-10 Monthly
Core Aerification 5-10 1-2 5-8 2
Overseeding 5
At Overseeding
30 Days Following
60 Days Following
At Overseeding
30 Days Following
60 Days Following
Dormant Feeding 10 Prior to Dormancy 10 Prior to Dormancy
Snow Mold 10-15 1 Late Season
1 Early Spring
10-15 1 Late Season
1 Early Spring