
Sigma 4-4-4 Bio
With Value-Added Biologicals
A balanced formula containing all the macronutrients plants need all season long. Formulated for organic use/farming, this premium-grade granular fertilizer contains nutrient-rich ingredients infused with value-added biologicals. Proprietary GranCORE Technology combines humic acid and essential nutrients such as NPK, Ca, and Fe into a slow-release and easy-to-spread granule. Our large grade size is an excellent choice for organic vegetable crop input.

Available Packaging:
50Lb.Poly Bag (22.68 KG) 2000 Lb.Totes (907 KG) Bulk Load
Guaranteed Analysis
Total Nitrogen (N) | 4.0% | ||||||
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Available Phosphate (P2O5) | 4.0% | ||||||
Soluble Potash (K2O) | 4.0% | ||||||
Calcium (Ca) | 6.0% | ||||||
Iron (Fe) | 0.1% |
Derived from processed poultry manure, feather meal, bone meal, and sulfate of potash.
Humic Acids | 3.0% |
Beneficial Bacteria | 2,800,000 CFU/Lb |
Endomycorrhizae | 6.1 Prop/Lb. |
Trichoderma | 480,000 CFU/Lb |
Also available without BIO Package (beneficial bacteria, endomycorrhizae, trichoderma)
Application Rates
Turf
Natural:
Medium: 19 lbs. (0.75 lb. N) / 1000 sq ft
Lawns:
High: 25 lbs. (1 lb. N) / 1000 sq ft.
Golf Course
Low Rate:
12 lbs. (0.50 lb. N) / 1000 sq ft.
Medium Rate:
19 lbs. (0.75 lb. N) / 1000 sq ft.
High Rate:
25 lbs. (1 lb. N) / 1000 sq ft.
Vegetable
Low Rate:
(Examples - peas, beans) Incorporate 1000 lbs. per acre 2-3 weeks prior to planting.
Medium Rate:
(Examples - asparagus, beet, carrot, melon, pepper, cauliflower, broccoli, brussels sprout, and celery) Incorporate 2500 lbs. per acre 2-3 weeks prior to planting.
High Rate:
(Examples - onion, sweet corn, potato, tomato) Incorporate 2500 lbs. per acre 2-3 weeks prior to planting.
Tree & Palm
Rate based on 1” of trunk diameter (caliper). Example: for 10” trunk diameter (caliper) multiply label rate by 10.
Incorporation:
Mix with soil in bottom of holes priorto transplanting. Apply 6.0 lb. at Transplanting.
Broadcast:
Apply 12.0 lb. at Transplanting.
Ornamentals
Low Rate:
(for heavy substrates with porosity < 60%)
Incorporation:
30 lb. per cubic yard of media
Landscape:
49 lb. per 1000 sq. ft.
Medium Rate:
(for most nursery stock and foliage plants)
Incorporation:
45 lb. per cubic yard of media
Landscape:
86 lb. per 1000 sq. ft.
High Rate:
(for light substrates with porosity > 80%)
Incorporation:
56 lb. per cubic yard of media
Landscape:
124 lb. per 1000 sq. ft.
Container Sizes
1 Gallon: | |
Low Rate: 40 grams | High Rate: 75 grams |
2 Gallon: | |
Low Rate: 75 grams | High Rate: 150 grams |
3 Gallon: | |
Low Rate: 115 grams | High Rate: 240 grams |
5 Gallon: | |
Low Rate: 150 grams | High Rate: 325 grams |
7 Gallon: | |
Low Rate: 225 grams | High Rate: 490 grams |
10 Gallon: | |
Low Rate: 275 grams | High Rate: 590 grams |
15 Gallon: | |
Low Rate: 300 grams | High Rate: 625 grams |