Mineral & Micronutrient Soil Amendments
Compare rock dust, kelp meal, and other mineral amendments for trace nutrients. Benefits and where to buy.
2 amendments
All types
Biological
Carbon amendment
Mineral & micronutrient
Mineral conditioner
Nitrogen source
Organic matter
pH adjustment
Phosphorus source
Kelp Meal
Dried seaweed meal supplying micronutrients, growth hormones, and organic matter.
Shop at 5 retailers
Rock Dust
Crushed volcanic or mineral rock adding slow-release trace elements.
Shop at 5 retailers
Research links only. Verify products and application rates for your soil and plants.