ACID
an acidic solution has a pH below 7.
an acidic solution has a pH below 7.
AERATION
Supplying soil and roots with air or oxygen. Geolite is an example of a medium with excellent aeration. In some hydroponic systems, a nutrient solution is aerated by the output of an aquarium pump.
Supplying soil and roots with air or oxygen. Geolite is an example of a medium with excellent aeration. In some hydroponic systems, a nutrient solution is aerated by the output of an aquarium pump.
AEROPONICS
A system in which the roots of a plant are consistently or intermittently misted with fine droplets of nutrient solution.
A system in which the roots of a plant are consistently or intermittently misted with fine droplets of nutrient solution.
ALKALINE
any pH over 7 is considered alkaline.
any pH over 7 is considered alkaline.
BLOOM BOOSTER
Fertilizer high in phosphorus (P) that increases flower yield.
Fertilizer high in phosphorus (P) that increases flower yield.
BORON (B)
The function of this micronutrient is not well understood, but it is suspected that it might aid carbohydrate transport.
The function of this micronutrient is not well understood, but it is suspected that it might aid carbohydrate transport.
BURN
Leaf tips that turn dark from excess fertilizer and salt burn.
Leaf tips that turn dark from excess fertilizer and salt burn.
CALCIUM (CA)
Calcium is vital in all parts of plants to promote the translocation of carbohydrates, healthy cell wall structure, strong stems, membrane maintenance and root structure development. Calcium is a macronutrient.
Calcium is vital in all parts of plants to promote the translocation of carbohydrates, healthy cell wall structure, strong stems, membrane maintenance and root structure development. Calcium is a macronutrient.
CARBON DIOXIDE (CO₂)
A colorless, odorless, tasteless gas in the air necessary for plant life. Occurs naturally in the atmosphere at .03%.
A colorless, odorless, tasteless gas in the air necessary for plant life. Occurs naturally in the atmosphere at .03%.
CHLORINE (CL)
This micronutrient is essential for photosynthesis, where it acts as an enzyme activator during the production of oxygen from water.
This micronutrient is essential for photosynthesis, where it acts as an enzyme activator during the production of oxygen from water.
CHLOROSIS
The condition of a sick plant with yellowing leaves due to inadequate formation of chlorophyll. Chlorosis is caused by a nutrient deficiency, usually iron or nitrogen; nutrient deficiencies are themselves often caused by a pH that is out of the acceptable range.
The condition of a sick plant with yellowing leaves due to inadequate formation of chlorophyll. Chlorosis is caused by a nutrient deficiency, usually iron or nitrogen; nutrient deficiencies are themselves often caused by a pH that is out of the acceptable range.
CLONE
A plant produced through asexual reproduction including, but not limited to, cuttings, layering and tissue culture.
A plant produced through asexual reproduction including, but not limited to, cuttings, layering and tissue culture.
CONDITIONING
To soak new Rockwool in an acidic solution to lower the pH from 8.0 to 5.5.
To soak new Rockwool in an acidic solution to lower the pH from 8.0 to 5.5.
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.
This micronutrient is an internal catalyst and acts as an electron carrier; it is also believed to play a role in nitrogen fixation.
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.
Disease that attacks young seedlings and cuttings, causing stems to rot at the base; overwatering is the main cause of damping-off.
DISSOLVED SOLIDS OR TOTAL DISSOLVED SOLIDS
The amount of dissolved solids, usually fertilizer salts, that are measured in water in parts per million.
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.
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.
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.
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