Haifa Calcium Nitrate 15.5-0-0 50lb bag Professional Cultivation This root control disc will

This root control disc will prevent roots from leaving the pot and heading towards the AQUAvalve

also known as a salt bridge

it stands up to chemicals

phosphoric acid

indoor pools

Haifa Calcium Nitrate 15.5-0-0 50lb bag Professional Cultivation This root control disc willHaifa Calcium Nitrate 15. 5 0 0 for Greenhouse Feeding Haifa Calcium Nitrate 15. 5 0 0 is the greenhouse grade of Haifa Cal, a fully water soluble calcium and nitrogen source. The 15. 5% nitrogen runs mostly as nitrate, at 14. 4% nitrate to 1. 1% ammoniacal, alongside 19% calcium. Nitrate feeds fast and keeps calcium moving into new growth, so a greenhouse or indoor crop holds firm cell walls. It dissolves clear and colorless, with only 0. 03%