Rock Phosphate is a naturally occurring mineral which is ground to a fine dust to improve the release of phosphorus for plant growth. This powdered mineral is then granulated with a natural binder called lignosulfonate. This granulating process produces a consistently sized particle which is easy to apply and is completely free of dust. After application, the pellets dissolve in water, returning the rock phosphate to a powder form. In addition to its binding qualities, Lignosulfonate naturally chelates the trace minerals in the rock phosphate, helping to improve availability.
Plants with high cation exchange root systems (legumes and grains) are found to be effective in obtaining phosphorous from soil and rock phosphate. This product is very effective when used in conjunction with cover cropping programs. Gaia Green Rock Phosphate contains 27% total phosphate with 3% immediately available.
Gaia Green Rock Phosphate is approved for use in organic agriculture by Ecocert Canada (in compliance with Canada’s Organic Production Systems General Principles & Management Standards and Permitted Substances Lists (CAN/CGSB 32.310-2015 and CAN/CGSB 32.311-2015)
Directions For Use
Pre-mixing soil: Add 45 ml (3 tbsp) per 4 L (1 gallon) of soil or growing medium and mix thoroughly.
Top-dressing: Apply 15 ml (1 tbsp) per 4 L (1 gallon) of soil or growing medium. Gently dig into the soil surface. Apply once a month or as desired.