
Sigma 7-2-1 Bio
With Value-Added Biologicals
For higher organic nitrogen requirements, a value-added fertilizer functioning at the rhizosphere to fuel metabolic nutrient cycling and organic mineralization. Boost root growth and overall plant health with Sigma 721 true granular microbial fertilizer.

Available Packaging:
2000 LB. TOTES (907 KG), 50 LB. POLYETHYLENE BAGS (22.68 KG), OR BULK LOAD
Guaranteed Analysis
Total Nitrogen (N) | 7.0% | ||
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Available Phosphate (P2O5) | 2.0% | ||
Soluble Potash (K2O) | 1.0% | ||
Calcium (Ca) | 5.0% | ||
Iron (Fe) | 0.2% |
Derived from composted poultry manure and feather meal.
* * 5.95% slowly available water insoluble nitrogen from composted poultry manure and feather meal.
ALSO CONTAINS NON-PLANT FOOD INGREDIENTS
5% Humate
Contains 11.3 Million Total Bacillus Bacteria Colony Forming Units (CFU's) per Lb.
Bacillus subtillus | 4.17 x 103 CFU's/gm |
Bacillus amyloliquefaciens | 4.17 x 103 CFU's/gm |
Bacillus laterosporus | 8.35 x 103 CFU's/gm |
Bacillus licheniformis | 8.35 x 103 CFU's/gm |
Bacillus mojavensis | 8.35 x 103 CFU's/gm |
Contains 72.57 Total Mycorrhizal Fungi Propagules per Lb.
Glomus Aggregotum | 0.04 Propagules/gm |
Glomus Intradices | 0.04 Propagules/g |
Glomus Mosseae | 0.04 Propagules/gm |
Glomus Etunicatum | 0.04 Propagules/gm/td> |
Contains 1.13 million total Trichoderma Colony Forming Units (CFU's) per Lb.
Trichoderma harzianum | 1.0 x 103 CFU's/gm |
Trichoderma koningii | 1.5 x 103 CFU's/gm |
Application Rates
Turf
Natural:
Medium: 25 lb. / 1000 sq ft. (0.75 lb. N)
Lawns:
High: 33 lb. / 1000 sq ft.(1.0 lb. N)
Golf Course
Low Rate:
16 lb. / 1000 sq ft.(0.50 lb. N)
Medium Rate:
25 lb. / 1000 sq ft. (0.75 lb. N)
High Rate:
33 lb. / 1000 sq ft. (1.0 lb. N)
Vegetable
Low Rate:
(Examples - peas, beans) Incorporate 450 lb. at planting or per organic certification rules.
Medium Rate:
(Examples - asparagus, beet, carrot, melon, pepper, cauliflower, broccoli, brussels sprouts, and celery) Incorporate 1100 lb. per acre at planting or per organic certification rules.
High Rate:
(Examples - onion, sweet corn, potato, tomato) Incorporate 1100 lb. per acre at planting then broadcast or band additional fertilizer after plants are well established or per organic certification rules.
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 3.5 lb. at Transplanting.
Broadcast:
Apply 7.0 lb. at Transplanting.
Ornamentals
Low Rate:
(for heavy substrates with porosity < 60%)
Incorporation:
17 lb. per cubic yard of media
Landscape:
28 lb. per 1000 sq. ft.
Medium Rate:
(for most nursery stock and foliage plants)
Incorporation:
26 lb. per cubic yard of media
Landscape:
49 lb. per 1000 sq. ft..
High Rate:
(for light substrates with porosity > 80%)
Incorporation:
32 lb. per cubic yard of media
Landscape:
70 lb. per 1000 sq. ft.
Container Sizes
1 Gallon: | |
Low Rate: 32 grams | High Rate: 64 grams |
2 Gallon: | |
Low Rate: 64 grams | High Rate: 128 grams |
3 Gallon: | |
Low Rate: 96 grams | High Rate: 203 grams |
5 Gallon: | |
Low Rate: 128 grams | High Rate: 278 grams |
7 Gallon: | |
Low Rate: 193 grams | High Rate: 418 grams |
10 Gallon: | |
Low Rate: 236 grams | High Rate: 503 grams |
15 Gallon: | |
Low Rate: 257 grams | High Rate: 535 grams |