A) Growing plants with special soil. B) Growing plants only with organic nutrients. C) Growing plants without soil. D) Growing plants only in greenhouses.
A) Phosphorus B) Carbon Dioxide C) Potassium D) Nitrogen
A) Evaporation Coefficient B) Energy Consumption C) Electrical Conductivity (nutrient concentration) D) Environmental Control
A) 5.5 - 6.5 B) 8.5 - 9.5 C) 7.0 - 8.0 D) 4.0 - 5.0
A) Ebb and Flow (Flood and Drain) B) Wick System C) Nutrient Film Technique (NFT) D) Deep Water Culture (DWC)
A) To increase oxygen levels in the nutrient solution. B) To heat the nutrient solution. C) To filter the nutrient solution. D) To circulate the nutrient solution.
A) Ebb and Flow B) DWC C) NFT D) Wick System
A) To regulate the pH of the nutrient solution. B) To filter the nutrient solution. C) To provide support for the plant roots. D) To provide nutrients to the plant.
A) Topsoil B) Sand C) Clay soil D) Rockwool
A) To provide energy for photosynthesis. B) To regulate the temperature of the nutrient solution. C) To sterilize the grow media. D) To attract pollinators.
A) HPS B) Incandescent C) LED D) Metal Halide
A) To promote bushier growth. B) To prevent flowering. C) To improve water absorption. D) To increase the size of the roots.
A) Parts Per Million B) Plants Per Meter C) Pounds Per Month D) Pressure Per Minute
A) To prevent nutrient imbalances and disease. B) To reduce the temperature of the solution. C) To increase the pH of the solution. D) To promote root growth.
A) Beetles B) Earthworms C) Grasshoppers D) Aphids
A) Increase the pH of the nutrient solution. B) Keep the nutrient solution shielded from light. C) Expose the solution to direct sunlight. D) Add more nutrients to the solution.
A) Greater variety of plants can be grown. B) Faster growth and higher yields. C) Less maintenance required. D) Lower initial setup cost.
A) Cell wall development B) Chlorophyll production C) Nitrogen fixation D) Root growth stimulation
A) Kratky Method B) Ebb and Flow C) DWC (Deep Water Culture) D) NFT (Nutrient Film Technique)
A) To add beneficial microbes to the system. B) To increase the pH of the water. C) To lower the temperature of the water. D) To remove impurities and control nutrient levels.
A) Root rot, damages the root system. B) Premature flowering, reduces leaf production. C) Nutrient deficiency, stunts growth. D) Pest infestation, attracts insects.
A) Root development and strengthening. B) Water absorption and transport. C) Chlorophyll production and enzyme activation. D) Fruit ripening and sweetness.
A) The wilting of leaves due to lack of water. B) A calcium deficiency in mature plants. C) A sudden drop in nutrient levels. D) A fungal disease that affects seedlings.
A) To monitor pH levels. B) To control the amount of light the plants receive. C) To automate nutrient delivery cycles. D) To regulate the temperature of the water.
A) Stunted growth and dark green leaves. B) Purple or red stems. C) Leaf curling and browning. D) Yellowing of older leaves.
A) Using a complex system of pumps and timers. B) Requiring frequent water level adjustments. C) Using a continuous flow of nutrient solution. D) Being a passive, non-circulating system.
A) Help with nutrient uptake and disease suppression. B) Regulate pH levels. C) Increase water temperature. D) Filter out unwanted particles.
A) DWC (Deep Water Culture) B) Ebb and Flow (Flood and Drain) C) NFT (Nutrient Film Technique) D) Wick System
A) Boiling the system components. B) Using a diluted bleach solution. C) Exposing the system to direct sunlight. D) Washing with soap and water.
A) The amount of light the plants receive; affects photosynthesis. B) The amount of oxygen in the water; affects root health. C) The difference between the moisture content of the air and the moisture content of the leaves; affects transpiration. D) The measure of nutrient concentration; affects growth rate. |