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Nature's Source


triathalon BA

CalPhos, soft rock phosphate standard POWDER 50 pound bag


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  • Model: Cal-Phos POWDER
  • Shipping Weight: 52lbs
  • Manufactured by: Canton Mills


Calphos™ 0-3-0 fertilizer 50 pound bag

Natural, untreadted soft rock phosphate and colloidial clay. 

Calphos™ is a natural, untreated soft phosphate with colloidal clay containing valuable minor minerals in addition to phosphorus. It is not acid forming, will not cake or harden and spreads easily through any type of lime, phosphate or fertilizer spreader.


This grade is the original product that has been produced since the 1940s.  It is a finely ground product with the consistency of fine lime.  80% will wash through a 200 mesh screen.

Calphos™ is not a complete fertilizer and should never be used as such. It is an excellent source of phosphate that is being used profitably for farmers who are interested in getting a dollar’s value for a dollar spent. When applied to the soil Calphos™ adheres to and becomes a part of the soil. It will not leach and it will not revert and once applied remains in the soil until used by the plants.

Calphos™ contains no harmful acids and encourages growth of soil bacteria and earthworms.

Use Nature's Own Calphos™ An Untreated, Soft, Phosphatic Clay

Containing 3% Available P2O5 (20% Total P2O5)* and 20% Calcium (Ca)


This product was added to our catalog on Saturday 17 June, 2017.