The condition of a sick plant with yellowing leaves due to inadequate formation of chlorophyll. To soak new Rockwool in an acidic solution to lower the pH from 8.0 to 5.5. The amount of dissolved solids, usually fertilizer salts, that are measured in water in parts per million. A hydroponic method wherein air pressure from a small air pump is used to percolate nutrient solution out through a ring of feeder tubing which encircles the plant. A very efficient watering system that employs a main hose with small water emitters.
Water is metered out of the emitters, one drop at a time.
A hydroponic system in which the medium, usually aggregate pebbles, is periodically flooded with nutrient solution and then drained again, feeding and aerating the medium and root system. A product that destroys or inhibits fungus. The process of causing the initiation and development of a plant from seed. It is a lightweight, porous substrate with excellent aeration. To gradually acclimatize a plant to a more harsh environment.