PCAL1660 - Micronized Colloidal Rock Phosphate - ORGANIC

Micronized Colloidal Rock Phosphate 

PCAL1660 contains 16 ppm of Phosphorus (P) per (1) gram/gallon of water.  Can be applied as a foliar at 2 grams per gallon of water and via irrigation systems at 0.5 to 1.0 gr/gal.  A teaspoon worked in below transplants and can be applied again at fruiting and flowering.   Many feed PCAL until harvest.

The tiny particle size permits the plant to pick up micronized rocks that enter through the Stoma (leaf pore) or roots directly in the water solution.