
Sigma 5-3-2 Bio
With Value-Added Biologicals
Sigma’s base formula containing 100% organic and natural ingredients plus twice the concentration of biological additions compared to other dry formulas. Using minerals like humic acids, our fertilizer is guaranteed to enrich soil content in a way that won't burn roots. Strengthens root growth and overall plant health. Apply “as is” or dry blend with conventional fertilizers to maximize performance.

Available Packaging:
50Lb.Poly Bag (22.68 KG) 2000 Lb.Totes (907 KG) Bulk Load
PDFs:
Guaranteed Analysis
Total Nitrogen (N) | 5.0% | ||
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Available Phosphate (P2O5) | 3.0% | ||
Soluble Potash (K2O) | 2.0% | ||
Calcium (Ca) | 7.0% | ||
Iron (Fe) | 0.1% |
Derived from processed poultry manure, bone meal, leonardite, feather meal and sulfate of potash
Humic Acids | 3.0% |
Beneficial Bacteria | 2,800,000 CFU/Lb |
Endomycorrhizae | 6.2 Prop/Lb. |
Trichoderma | 480,000 CFU/Lb |
Also available without BIO Package (beneficial bacteria, endomycorrhizae, trichoderma)
Application Rates
Turf
Natural:
15 lb. (0.75 lb. N) / 1000 sq ft
Lawns:
20 lb. (1 lb. N) / 1000 sq ft.
Golf Course
Low Rate:
10 lb. (0.50 lb. N) / 1000 sq ft.
Medium Rate:
15 lb. (0.75 lb. N) / 1000 sq ft.
High Rate:
20 lb. (1 lb. N) / 1000 sq ft.
Vegetable
Low Rate:
(Examples - peas, beans) Incorporate 800 lb. per acre 2-3 weeks prior to planting.
Medium Rate:
(Examples - asparagus, beet, carrot, melon, pepper, cauliflower, broccoli, brussels sprout, and celery) Incorporate 2000 lb. per acre 2-3 weeks prior to planting.
High Rate:
(Examples - onion, sweet corn, potato, tomato) Incorporate 2000 lb. 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 prior to transplanting. Apply 5.0 lb. at transplanting
Broadcast:
Apply 10.0 lb. at transplanting.
Ornamentals
Low Rate:
(for heavy substrates with porosity < 60%)
Incorporation:
24 lb. per cubic yard of media
Landscape:
40 lb. per 1000 sq. ft.
Medium Rate:
(for most nursery stock and foliage plants)
Incorporation:
36 lb. per cubic yard of media
Landscape:
69 lb. per 1000 sq. ft.
High Rate:
(for light substrates with porosity > 80%)
Incorporation:
45 lb. per cubic yard of media
Landscape:
100 lb. per 1000 sq. ft.
Container Sizes
1 Gallon: | |
Low Rate: 30 grams | High Rate: 60 grams |
2 Gallon: | |
Low Rate: 60 grams | High Rate: 120 grams |
3 Gallon: | |
Low Rate: 92 grams | High Rate: 192 grams |
5 Gallon: | |
Low Rate: 120 grams | High Rate: 260 grams |
7 Gallon: | |
Low Rate: 180 grams | High Rate: 392 grams |
10 Gallon: | |
Low Rate: 220 grams | High Rate: 472 grams |
15 Gallon: | |
Low Rate: 240 grams | High Rate: 500 grams |