ASP Lesson 3.2 Review

Match the systems with their description:

• Conserves the most nutrient solution

• NFT (Nutrient Film Technique)

• Most popular water-based system

• Ebb and Flow

• flooding & draining an absorbent media

• Drip System

• absorbs h20 through capillary action

• Wick System

Match the systems with their description:

• systems that use an absorbent media

• Water Culture

• Involves misting of the plant roots

• Aggregate Culture

• Does not require an absorbent media

• Aeroponics

The electrical conductivity of the nutrient solution will determine the

• pH of the solution.

• . nutrient content of the solution.

• ions in solution.

• b and c

Tap water

• contains salts that affect its electro-conductivity.

• has a pH that will vary depending on where you live.

• contains few, if any, nutrients required for plant health.

• All of the above

Which of the following is not a media used in hydroponics?

• Perlite

• Rockwool

• Vermiculite

• Mineral Soil

The pH of a nutrient solution

• does not matter

• determines the amount of nutrients that will be absorbed

• measures the amount of nitrates in the solution.

• All of the above

The pH of a nutrient solution

• does not matter

• determines the amount of nutrients that will be absorbed

• measures the amount of nitrates in the solution.

• All of the above

An advantage of hydroponics is that it requires less land than traditional farming practices.

• True

• False

Which is true about the use of water within hydroponics compared to traditional farming practices?

• Water is used more efficiently in hydroponics compared to traditional farming practices.
• Hydroponics uses more water than traditional farming practices.
• Water usage is the same in hydroponics and traditional farming practices.

Nutrients are recycled within hydroponics, compared to traditional farming practices.

• True

• False