OMRI LISTED
Large Grade
With Twice the Value-Added Biologicals
2%
Nitrogen N
4%
Phosphate P₂O₅
2%
Potash K₂O
Sigma’s base formula containing 100% organic and natural ingredients plus twice the concentration of biological additions compared to other dry formulas. Organic minerals such as carbon and humic acids work together to strengthen root growth and overall plant health. Apply “as is” or dry blend with conventional fertilizers to maximize performance.
Available packaging
| Total Nitrogen (N) | 2.0% |
|---|---|
| ↳ Ammoniacal Nitrogen | 0.1% |
| ↳ Other Water Soluble Nitrogen | 0.3% |
| ↳ Water Insoluble Nitrogen | 1.6% |
| Available Phosphate (P2O5) | 4.0% |
| Soluble Potash (K2O) | 2.0% |
| Calcium (Ca) | 10.0% |
| Magnesium (Mg) | 0.5% |
| Iron (Fe) | 0.5% |
Derived from processed poultry manure, feather meal, bone meal and sulfate of potash.
Also available without BIO Package (beneficial bacteria, endomycorrhizae, trichoderma)
| Humic Acids | 6.0% |
|---|---|
| Beneficial Bacteria | 4,200,000 CFU/Lb |
| Endomycorrhizae | 9.4 Prop/Lb. |
| Trichoderma | 716,000 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.
Manufacturer-recommended rates. Always follow the product label, and contact us for a program tailored to your sites.
Rate based on 1” of trunk diameter (caliper). Example: for 10” trunk diameter (caliper) multiply label rate by 10.
| Pot | Low rate | High rate |
|---|---|---|
| 1 Gallon | 113 grams | 225 grams |
| 2 Gallon | 225 grams | 450 grams |
| 3 Gallon | 338 grams | 712 grams |
| 5 Gallon | 450 grams | 975 grams |
| 7 Gallon | 675 grams | 1462 grams |
| 10 Gallon | 825 grams | 1762 grams |
| 15 Gallon | 900 grams | 1875 grams |
OMRI LISTED
Large Grade
A balanced formula containing all the macronutrients plants need all season long. This premium-grade organic 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, easy-to-spread granule.
OMRI LISTED
Large Grade
A blend of fast and slow-release organic nutrient sources and value-added biologicals to fuel plants and recharge depleted soils, wherever a steady supply of nutrients is needed. Humic acids enrich the soil without burning roots, strengthening root growth and overall plant health. Apply as is, or dry blend with conventional fertilizers to maximize performance.
OMRI LISTED
Large Grade
Made with 100% organic and natural ingredients for applications that need higher nitrogen and potash with just the right amount of phosphorus. Beneficial microbes are granulated into a microbial food source for rapid nutrient cycling. Higher nitrogen, lower phosphorus and enhanced carbon make this multi-purpose fertilizer beneficial anywhere nutrients and biology are needed, with added potash for strong stem and root development.
OMRI LISTED
Large Grade
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.
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.