3 7 4MED50lb 600wide

Suståne® 3-7-4 is a granulated organic fertilizer that is rich in organic phosphorus and provides all of the soil building qualities of a concentrated compost.

Label Spec Sheet MSDS WSDA Certificate



Suståne 3-7-4 Natural Organic is a granulated organic fertilizer made from nutrient rich, concentrated compost. Suståne replenishes the soil with a rich supply of humus (stabilized organic matter) and all of the essential nutrients required for quality growth. Suståne 3-7-4 provides a concentrated package of plant macro and micro nutrients and organic substances and beneficial microbiology derived from biologically stable compost.


Recommended Use:

For use in the production of certified organic crops, as a general soil builder, crop starter fertilizer, organic phosphorus source, erosion control, native reestablishment and soil reclamation and remediation.

Benefits of Suståne 3-7-4

  • An excellent source of phosphorus provides rapid start to crops.
  • Can be applied in row, direct with seed.
  • Contains all primary, secondary and tertiary nutrients for plant growth.
  • Low Salt Index (6) requires no delay in planting following application.
  • Supplies soil with 60% Organic Matter in the form of stabilized humus.
  • Carbon:Nitrogen Ratio (8:1) ensures no N immobilization in soil.
  • Increases the nutrient and water holding capacity of the soil.
  • Enhances the soil’s ability to suppress plant pathogens.
  • Improves soil structure, porosity and stability leading to greater root development, infiltration and soil micropores.

Always Safe for Plants, People and the Environment

  • Manufactured by Suståne in the USA at an EPA permitted facility.
  • Pathogen and weed/seed free, no sewage sludge, blood or meat products.
  • The only organic allowed for export to over 50 countries worldwide.
  • USDA NOP, COR, EU and JAS organic compliant.
  • Aerobic composting eliminates animal and rodent attraction to application site.
  • Suståne will not attract flies or other insects.
  • Suståne is fully composted - not sterilized; enhancing the soil environment for beneficial microbial populations.
  • Improves and sustains soil health.

Guaranteed Analysis

Total Nitrogen (N) 3%
0.3% Ammoniacal Nitrogen
0.3% Water Soluble Organic Nitrogen
.4% Water Insoluble Organic Nitrogen*
Available Phosphate (P2O5) 7%
Soluble Potash (K2O) 4%
Calcium (Ca) 6.00%
Magnesium 1.00%
Sulfur 1.00%

Total Plant Nutrition

Iron 0.50%
Manganese 0.05%
Zinc 0.05%
Humic Acid 10%
Organic Matter 55%
pH 7.0
Carbon:Nitrogen (C:N) 8:1
Bulk Density lb./cu. ft 38
Salt Index (scale 1-100) 6
% of Total N as Slow Release 80%

Derived from aerobically composted turkey litter.
*2.4% slowly available nitrogen from aerobically composted turkey litter.

Available particle sizes:

  • Medium Grade, 200 SGN (2.8 mm - 1.4 mm)


  • 33 lb. covers 1,000 ft2 @ 1 lb. N per 1,000 ft2 (44 lb. N per acre)
  • 16.1 kg covers 100 m2 @ 0.5 kg N per 100 m2 (50 kg N per hectare)


  • Apply 33 lb. per 1000 ft2
  • Apply 161 g per 1 m2

Application Rates and Methods:

Crop Establishment Apply direct in-row with seed at rates of 100 lb. up to 250 lb. per acre.

Broadcast Application Rates:

  • For 30 lb. of N per acre apply 1,000 lb.
  • For 50 lb. of N per acre apply 1,667 lb.
  • For 70 lb. of N per acre apply 2,333 lb.

For 70 lb. of N per acre apply 2,333 lb.

  • Fall application, post harvest. Broadcast apply followed by light incorporation.
  • Spring application, pre-plant. Broadcast apply followed by light incorporation.
  • During planting, can be applied by grain drills, banded or air seeders, direct with seed.
  • During cultivation, apply next to row or use Suståne 8-2-4 for higher N demanding crops.

Land Management, Native Restoration & Erosion Control Programs:


  • For 44 lb. of N per acre apply 1467 lb.
  • For 90 lb. of N per acre apply 3000 lb.
  • For 130 lb. of N per acre apply 4333 lb.

Soil Preparation

  • Light, High Sandy Soil:10 lb. per 100 square feet of bed
  • Medium, Clay Loam Soil: 15 lb. per 100 square feet of bed
  • Heavy, Silty, Clay Loam: 20 lb. per 100 square feet of bed

(*Hydroseeding: Mix with water solution at a ratio of 4 lb. Suståne 3-7-4 to 1 gallon of water or 2 tons per 1,000 gallon tank)