SIGMA Bio Organic Fertilizers

Poultry-manure-based nutrition with added biology

Explore SIGMA AgriScience dry BIO fertilizers for professional crop and turf programs. Compare nutrient balance, physical grade and biological ingredients to choose the right formula for your soil and growing program.

Choose your BIO formula

• 4-4-4 Bio Fine Grade: equal NPK percentages in a fine micro-granular blend, with 6% calcium and added biology.
• 5-3-2 Bio: a nitrogen-led ratio with 7% calcium, 3% humic acids and a documented biological package. For non-residential use only.
• 2-4-2 Bio: lower nitrogen concentration with 10% calcium, 6% magnesium, humate and biological additions, where that nutrient balance fits your program.
• 6-2-6 Bio Fine Grade: higher nitrogen and potassium percentages with 2% phosphate, for programs requiring that balance.

Comparing chicken manure pellets?

Look beyond NPK to nutrient sources, biological additions and particle size. These poultry-manure-based fertilizer blends offer different nutrient ratios and grades; the fine-grade micro-granular products should not be treated as identical to standard manure pellets. Check each product’s physical format against your equipment and application method.

Start with soil testing and crop requirements. Review the individual product pages for label analysis, biological ingredients, application rates and use restrictions before ordering.