Glossary
Glossary | |
| Terms that are on use on this site. | |
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| There are 84 entries in the glossary. | |
| Pages: «1 2 3 4 5 6 7 8 9 » | |
| Term | Definition |
| CLOSED SYSTEM | A hydroponic system, like nutrient film technique (NFT) systems, that recirculates the nutrient solution. |
| CONDITIONING | To soak new Rockwool in an acidic solution to lower the pH from 8.0 to 5.5. |
| CONDUCTIVITY | The scale, described as electrical conductivity (EC) or conductivity factor (CF), that is used to measure the strength of nutrient solution. |
| COPPER (Cu) | This micronutrient is an internal catalyst and acts as an electron carrier; it is also believed to play a role in nitrogen fixation. |
| CROSS-POLLINATION | Transferring pollen from the flowers of one plant of a species to the stigma of another plant of the same species. |
| DAMPING-OFF FUNGUS | Disease that attacks young seedlings and cuttings, causing stems to rot at the base; overwatering is the main cause of damping-off. |
| DIOECIOUS | Varieties or species with male and female flowers on separate plants. |
| DISSOLVED SOLIDS or TOTAL DISSOLVED SOLI | The amount of dissolved solids, usually fertilizer salts, that are measured in water in parts per million. |
| DRIP AERATION | 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. |
| DRIP SYSTEM (DRIP EMITTER SYSTEM) | 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. |
| Glossary V2.0 | |