Activate 80 Coarse Grade Humate (50 lb)

This coarse-grade soil amendment is derived from Leonardite shale and delivers a rich supply of humic acids and trace minerals to improve soil structure and nutrient efficiency. With 45% humic acid content, it's ideal for increasing microbial activity, buffering pH, and enhancing the uptake of both existing and applied nutrients in garden beds, pastures, and fields.

Best suited for direct soil application, the granulated texture allows for easy spreading and incorporation into the soil profile. Use it to revitalize depleted soils, boost long-term fertility, and support healthy root systems. This formulation is not intended for fertigation but performs well when blended into compost, seedbeds, or applied as a top dressing.

Typical application rates range from 50–400 lb per acre, or 1–2 lb per 100 sq ft. For seedbed use, apply 10–30 lb per acre to encourage early root development. Lawns benefit from 50 lb per 15,000 sq ft. A practical choice for organic growers looking to build resilient, biologically active soils with minimal input.

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Source: Leonardite shale (New Mexico)
Humic Acid Content: 45%
Application Rate: 50–400 lb/acre or 1–2 lb/100 sq ft
Form: Coarse grade (soil application only)
Weight: 50 lb