![Gaia Green Rock Phosphate 0-3-0 2kg](http://treeoflifeshop.ca/cdn/shop/products/GAI-182-B_{width}x.jpg?v=1598540074)
Gaia Green Rock Phosphate is a naturally occurring mineral, which has been ground into a fine powder. Plants with high cation exchange root systems (legumes & grains) are found to be effective in obtaining phosphorous from soil and rock phosphate. This product can be very effective when used in conjunction with cover cropping.