Amendment Minerals for Soil

Field Grade

Field Grade mimics a coarse sand. Particle sizes range from 1/8” to powder for both rapid and longer-term results. Field Grade is designed for composting and potting soils, though it is dusty when applied with a broadcast spreader. OMRI-Listed for use in organic production.

Product Technical Sheet

This product is OMRI-Listed for use in organic production

View OMRI Certifications

Quantities Available:

  • Single Bag: 44 lb.
  • Pallets: 50, 44lb. bags
  • Truckloads: 21 pallets
  • Totes by Weight: 1.0 tons
  • Bulk: Truckloads
  • Bulk Railcars: Call for details


  • Re-mineralizes soil for optimum growth
  • Virtually odorless
  • Improves root systems, yields and quality
  • Natural occurring mineral deposit
  • For all soil types
View Product Use Guidelines

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