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Natural Guano Rock Phosphate (P 10% CaO 22%), prilled for easy spreading
Granulated Guano Phosphate Rock is a slow release natural form of phosphorus containing 9.4% phosphorous of which 50.5% is readily available (50.5% citrate solubility), with the balance released over 3 to 5 years.
As featured in the ECTOL Plant and Crop Nutrients Newsletter
Guano: Biogro NZ Ltd - Certified Organic
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