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