Gaia Green Rock Phosphate is a naturally occuring mineral which has been ground to a fine powder and then granulated with a molasses binder, which is water soluble. Plants with high carbon 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. Contains 14 percent with 8 percent available phosphorous, the remained is released over a period of about 4 years. 2kg
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