Organic NPK Fertilizer with Value-Added Biologicals — 50 lb Bag

Sigma 5-3-2 Bio by SIGMA AgriScience is a dry granular organic fertilizer delivering a balanced 5-3-2 NPK profile enriched with value-added biological additives. Designed for soil-based production, raised beds, and organic field programs, Sigma 5-3-2 Bio feeds plants through both direct nutrient release and biological soil activity — building long-term fertility while supporting immediate crop nutrition.

The biological package stimulates microbial activity in the root zone, improving nutrient cycling, organic matter breakdown, and overall soil health. Suitable for vegetables, fruits, herbs, flowers, and specialty crop production under organic certification programs.

Guaranteed Analysis

• Total Nitrogen (N): 5%
• Available Phosphate (P₂O₅): 3%
• Soluble Potash (K₂O): 2%
• Value-added biologicals: included
• Form: Dry granular
• Package size: 50 lb bag

Application Rates

• Low rate: Apply at manufacturer’s minimum recommended rate for maintenance programs
• Medium rate: Standard application for established crops and regular fertility programs
• High rate: Use for heavy feeders, transplanting, or building depleted soils

Apply and incorporate into soil before planting, or side-dress around established plants. Water in after application. Consult label for crop-specific rates.

Key Features

• 5-3-2 NPK — balanced organic nutrition for vegetative growth and root development
• Value-added biologicals — stimulates microbial activity and improves nutrient cycling
• Dry granular formula — easy to apply; uniform distribution
• Builds soil fertility — organic matter supports long-term soil health
• Broad crop compatibility — vegetables, fruits, herbs, flowers, and specialty crop
• 50 lb bag — commercial scale for farms, greenhouses, and large garden programs

State restrictions: Not available for shipment to Oregon.

Use in accordance with recommendations of a qualified individual or institution such as a certified crop advisor or university crop extension publication.