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Terra Elemental
Sigma 7-2-1 Bio 50 lb bag OMRI LISTED

Large Grade

Sigma 7-2-1 Bio

With Value-Added Biologicals

7%

Nitrogen N

2%

Phosphate P₂O₅

1%

Potash K₂O

For higher organic nitrogen requirements, a value-added fertilizer functioning at the rhizosphere to fuel metabolic nutrient cycling and organic mineralization. Between the carbon-inducing and humic acid-rich content, your roots will have the nourishment needed for sustainable yields. Boost root growth and overall plant health with Sigma 7-2-1 true granular microbial fertilizer.

Available packaging

  • 50 lb poly bag (22.68 kg)
  • 2,000 lb tote (907 kg)
  • Bulk load

Guaranteed analysis

Total Nitrogen (N)7.0%
↳ Water Soluble Nitrogen1.9%
↳ Water Insoluble Nitrogen5.1%
Available Phosphate (P2O5)2.0%
Soluble Potash (K2O)1.0%
Calcium (Ca)5.0%
Iron (Fe)0.1%

Derived from poultry manure and feather meal.

Also available without BIO Package (beneficial bacteria, endomycorrhizae, trichoderma)

Value-added biologicals

Humic Acids3.0%
Beneficial Bacteria2,800,000 CFU/Lb
Endomycorrhizae6.1 Prop/Lb.
Trichoderma480,000 CFU/Lb

Beneficial bacteria, endomycorrhizae and Trichoderma are granulated into a microbial food source so they establish quickly in the root zone. Full species counts are listed on the product label.

Application rates

Manufacturer-recommended rates. Always follow the product label, and contact us for a program tailored to your sites.

Turf

Natural
Medium: 11 lb. / 1000 sq ft. (0.75 lb. N)
Lawns
High: 14 lb. / 1000 sq ft.(1.0 lb. N)

Golf Course

Low Rate
7 lb. / 1000 sq ft.(0.50 lb. N)
Medium Rate
11 lb. / 1000 sq ft. (0.75 lb. N)
High Rate
14 lb. / 1000 sq ft. (1.0 lb. N)

Vegetable

Low Rate
(Examples – peas, beans) Incorporate 571 lb. at planting or per organic certification rules.
Medium Rate
(Examples – asparagus, beet, carrot, melon, pepper, cauliflower, broccoli, brussels sprouts, and celery) Incorporate 1430 lb. per acre at planting or per organic certification rules.
High Rate
(Examples – onion, sweet corn, potato, tomato) Incorporate 1430 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 prior to 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

PotLow rateHigh rate
1 Gallon23 grams43 grams
2 Gallon43 grams86 grams
3 Gallon66 grams137 grams
5 Gallon150 grams186 grams
7 Gallon129 grams280 grams
10 Gallon157 grams337 grams
15 Gallon171 grams357 grams

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Planning next season's program?

Tell us about your sites and acreage. We'll recommend products and rates, send labels and SDS sheets for your files, and put together a formal quote.