Rock Phosphate is a naturally occurring mineral, which has been ground to a fine powder. Plants with high ion exchange root systems (grains & legumes) are found to be effective in obtaining phosphorous from soil & rock phosphate.
Rock Phosphate is a naturally occurring mineral, which has been ground to a fine powder. Plants with high ion exchange root systems (grains & legumes) are found to be effective in obtaining phosphorous from soil & rock phosphate.
