Hydroponics

What is the primary medium in which plants are grown in hydroponics?

• Conventional soil

• Sand

• Organic compost

• Inorganic growing medium

Which of the following is NOT a function of soil for plants?

• Generating nutrients autonomously

• Acting as a physical support system

• Supplying air to roots

• Retaining water and nutrients

What is the Nutrient Film Technique (NFT) in hydroponics?

• A method where plants are suspended in air and misted with nutrients

• A technique using a wick to transport nutrients

• A method where plants float directly on water

• A system where nutrient-rich water is pumped through channels over the roots

Which hydroponic system is considered the simplest and perfect for beginners?

• Wick Systems

• Drip Systems

• Deep Water Culture

• Aeroponics

What is a major advantage of hydroponic farming?

• Plants grow slower due to controlled conditions

• Requires more water than soil-based agriculture

• Allows for maximized yield due to compact root systems

• Higher susceptibility to soil-borne diseases

Which of the following is NOT a growing medium mentioned for hydroponics?

• Perlite

• Vermiculite

• Loamy soil

• Rockwool

What does the Deep Water Culture (DWC) system require to keep roots healthy?

• Continuous sunlight

• Soil

• Oxygenation of water

• Frequent changing of water

What is a significant challenge for commercial hydroponic operations?

• High startup costs

• Plants grow too quickly

• Low startup costs

• No need for expertise

How can hydroponic systems overcome the problem of seasonal crop production?

• By using genetically modified plants only

• By growing plants outdoors

• By relying on natural sunlight

• By controlling the climate and lighting

What is a potential risk for hydroponic systems, especially large electric-powered ones?

• Too much soil contamination

• Power and water outages

• Invasion of soil pests

• Overproduction of crops