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• Measures conductivity EC
Calibration: Factory calibrated (no additional calibration required)
Whats included:
and they’ve added select strains of beneficial bacteria that solubilize phosphorus
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Roots Organics Phos Rock Size:55 lb • Measures conductivity ECDERIVED FROM Phosphate Rock Roots Organics Phos Rock is an excellent source of phosphorus and calcium. Carefully processed and sifted to make it easy to work with, Roots Organics Phos Rock encourages vigorous flowering and fruiting. All of the Roots Organics phos rocks have been sourced for quality and harvested with bat friendly methods so you and your garden get performance with principles.
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