Steamed Bone Flour 
An organic source of phosphate, which can also be used as a conditioner for fertiliser mixtures. It typically contains 12% phosphorus (28% phosphate), along with a trace amount of nitrogen (i.e. less than 1%).
Steamed Bone Flour
An organic source of phosphate, which can also be used as a conditioner for fertiliser mixtures. It typically contains 12% phosphorus (28% phosphate), along with a trace amount of nitrogen (i.e. less than 1%).