High-N, High-K Organic Nutrition for Phosphorus-Restricted Areas

Sigma 6-2-6 Bio Fine Grade is engineered for growers and turf managers operating under phosphorus restrictions — delivering elevated nitrogen and potassium with minimal phosphorus input. The fine-grade micro-granular particle size ensures uniform coverage and fast incorporation across turf, vegetables, trees, ornamentals, and specialty crop.

Ideal for spring and fall aeration recovery, cool-season overseeding nutrition, warm-season transition, and tournament-ready turf conditioning. Humic acids and a full biological package work together to strengthen root architecture and improve water and nutrient uptake throughout the season.

Guaranteed Analysis

Total Nitrogen (N): 6.0%
— 0.79% Water Soluble Nitrogen
— 3.36% Water Insoluble Nitrogen
Available Phosphate (P₂O₅): 2.0%
Soluble Potash (K₂O): 6.0%
Calcium (Ca): 5.0%
Iron (Fe): 0.2%

Derived from: processed poultry manure and bone meal.

Biological Package

• Humic Acids: 3.0%
• Beneficial Bacteria: 2,800,000 CFU/lb
• Endomycorrhizae: 6.2 Propagules/lb
• Trichoderma: 480,000 CFU/lb

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

Application Rates

Turf
Medium: 12.5 lb (0.75 lb N) / 1,000 sq ft
High: 17 lb (1.0 lb N) / 1,000 sq ft

Golf Course
Low: 8.5 lb (0.50 lb N) / 1,000 sq ft
Medium: 12.5 lb (0.75 lb N) / 1,000 sq ft
High: 17 lb (1.0 lb N) / 1,000 sq ft

Vegetables
Low (peas, beans): 650 lb/acre at planting
Medium (asparagus, beet, carrot, melon, pepper, cauliflower, broccoli, celery): 1,300 lb/acre at planting
High (onion, sweet corn, potato, tomato): 1,300 lb/acre at planting, then broadcast or band after establishment

Trees & Palms — Rate based on 1" of trunk diameter (caliper).
Incorporation: 4.0 lb at transplanting
Broadcast: 8.0 lb at transplanting

Ornamentals

• Low (porosity <60%): 20 lb/cu yd incorporation | 33 lb/1,000 sq ft landscape
• Medium (most nursery stock): 30 lb/cu yd incorporation | 58 lb/1,000 sq ft landscape
• High (porosity >80%): 38 lb/cu yd incorporation | 82 lb/1,000 sq ft landscape

Container Rates

• 1 gal: 40–75 g
• 2 gal: 75–150 g
• 3 gal: 115–240 g
• 5 gal: 150–325 g
• 7 gal: 225–490 g
• 10 gal: 275–590 g
• 15 gal: 300–625 g

Documents

• Safety Data Sheet (SDS)
• Product Flier
• Product Label