Suståne 15-3-9 with UMAXX Premium Homogeneous Turf Fertilizer

Suståne 15-3-9+UMAXX combines Suståne organic compost base with stabilized nitrogen from UMAXX delivered in a uniform, homogeneous mini granules for low mowed golf course fairways and all sports pitches.
Label Spec Sheet

Suståne 15-3-9 with UMAXX® Premium Homogeneous Turf Fertilizer.

Made with Suståne Organic Compost and UMAXX Stabilized Nitrogen


Suståne 15-3-9 with UMAXX® is a stabilized nitrogen fertilizer made from biologically stable compost, UMAXX stabilized urea nitrogen, urea, sulfate of potash, and chelated iron for long-lasting, enhanced turf response and soil health.

Suståne 15-3-9 is delivered in a uniform, homogeneous mini (150 SGN) granule for low mowed golf course fairways and all sports pitches. 15-3-9 provides quick turf green-up in cool-season and warm-season grasses. With 9.75% Slow Release and stabilized N, 15-3-9 provides sustained turf response without surge growth.

Recommended Use:

Suståne 15-3-9+UMAXX is used on premium turf grass applications including golf course fairways and tee boxes, athletic fields, and all high visibility turf.

Professional Grade:

Suståne products are derived from biologically stable humus-rich compost and contain both water-soluble nitrogen (WSN) and slow-release nitrogen (SRN), beneficial microbiology, and all 17 elements essential for plant photosynthesis. With a near-neutral pH, a low salt index, and low ammonium nitrogen percentage, Suståne will not cause seedling stress or plant fertilizer “burn”. Suståne products increase soil cation exchange capacity (CEC) by supplying humates and stable organic matter. Suståne’s organic and blended natural fertilizers provide all soil types with additional buffering capacity, allowing for more consistent and productive growth.

Benefits of Suståne 15-3-9+UMAXX

  • It provides quick green up followed by six to ten weeks of even color and growth.
  • It contains Sustane World Class Organic Base and Trace Minerals.
  • It contains 9.75% Slow Release Nitrogen from UMAXX stabilized N and Sustane Organic N.
  • It contains all nutrients necessary for plant growth.
  • 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
  • Available in 100 SGN (1.4 .mm - 0.6 mm) the ideal particle for golf course greens and 150 SGN (1.5 mm) size for all tees and close mowed turf
  • All combined in each uniform homogeneous granule

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 worldwide.
  • Aerobic composting eliminates animal and rodent attraction to the application site.
  • It contains naturally occurring beneficial bacteria and fungi that are necessary to begin the nutrient life cycle in poor soil.
  • Suståne is fully composted eliminating the need for sterilization, permitting a healthy environment for beneficial microbial populations.

Suståne Integrated Soil Management Program:

The following chart shows the recommended amounts of Suståne 15-3-9 for a typical integrated program.

Use & Application:Greens & TeesFairways, Athletic Fields, Parks and Lawncare
Rate (1b./1000ft2) Application Frequency Rate (lb./1000 ft2) Application Frequency
Early Feeding 3-7 1-2 3-7 1-2
Turf Establishment N/A N/A N/A N/A
Summer Stress/Disease Prevention 3-7 Monthly 3-7 Monthly
Core Aerification 3 1-2 3-7 2
Overseeding N/A N/A N/A N/A
Dormant Feeding 7 Prior to Dormancy 7 Prior to Dormancy
Snow Mold 7-10 1 Late Season
1 Early Spring
7-10 1 Late Season
1 Early Spring

Landscape Maintenance:

Professional landscapers have increasingly turned to Suståne 15-3-9 for use on high maintenance turf and landscaped environments. While synthetic fertilizers supply plant growth nutrients, they do not supply the organic matter required to maintain quality growth. Using fully composted natural fertilizers increases the levels of beneficial microbial activity, which in turn converts nutrients into plant-available forms.

Warm Season Turf

  • Athletic Fields, Parks and Lawncare
  • Apply 4-7 times per season
  • Spring and Fall - 3 lb. per 1000 ft2
  • Summer - 5 lb. per 1000 ft2

Cool Season Turf

  • Athletic Fields, Parks and Lawncare
  • Apply 2-3 times per season
  • 7 lbs. per 1000 ft2

Soil Preparation For Flower & Shrub Beds

  • Light, Sandy Soil: 10 lb. per 100 ft2
  • Medium, Clay Loam Soil: 7 lb. per 100 ft2
  • Heavy, Silty, Clay Loam: 5 lb. per 100 ft2

Guaranteed Analysis

Total Nitrogen (N) 15%
0.2% Ammoniacal Nitrogen
13.4% Urea Nitrogen
1.4% Water Insoluble Nitrogen**
Available Phosphate (P2O5) 3%
Soluble Potash (K2O) 9%
Calcium (Ca) 1.5%
Magnesium 0.5%
Sulfur 5%
Iron 2%

Total Plant Nutrition

Manganese 0.05%
Zinc 0.05%
Humic Acid %
Organic Matter 50%
pH 6.8
Carbon:Nitrogen (C:N) 4:1
Bulk Density lb./cu. ft 39
% of Total N as Slow Release 70%

Derived from aerobically composted turkey litter, stabilized urea, urea, sulfate of potash and ferrous sulfate
*8.35% urea nitrogen stabilized with dicyandiamide and N-(n-butyl) thiophosphoric triamide.
**1.4% slowly available nitrogen from aerobically composted turkey litter.


Available Particle Sizes:

  • Mini Grade, 150 SGN (1.7 mm - 1.4 mm)
  • Fine Grade, 100 SGN (1.4 mm - 0.6 mm)


  • 50 lb. covers 7,500 f2 @ 1 lb. N per 1000 ft2 (44 lb. N per acre)
  • 22.67 kg covers 697 m2 @ 0.5 kg N per 100 m2 (50 kg N per hectare)


  • Apply 7 lb. per 1000 ft2
  • Apply 33 g per 1 m2