Hydroponics Flashcards
What is hydroponics?
Hydroponics is a method of growing plants without soil, by using mineral nutrient solutions in water.
What are the fundamental principles of hydroponics?
The fundamental principles include providing plants with essential nutrients directly through water and controlling the growing environment, including light, temperature, and pH.
What are inert mediums in hydroponics?
Inert mediums are chemically neutral and do not provide any nutritional value to the plants; they only support the plants’ roots.
What is perlite?
Perlite is a lightweight, granular material that is white in color.
What is coco coir?
Coco coir is derived from coconut shell fiber and is a completely natural product, sometimes referred to as coco peat.
What is the objective of learning about hydroponics?
The objective is to understand the basics of hydroponics and its benefits over traditional soil-based agriculture, and to identify different types of hydroponic systems.
What can students explain about hydroponics?
Students can explain what hydroponics is and how it works.
What can students identify regarding hydroponic systems?
Students can identify different types of hydroponic systems.
What discovery was made in the 17th century regarding plant growth?
Researchers discovered that plants could grow in water if the right minerals were added.
What has driven modern hydroponics?
Modern hydroponics has been driven by technological advancements, making it more accessible and efficient.
What are the ancient roots of hydroponics?
Hydroponics has ancient roots, potentially dating back to the Hanging Gardens of Babylon.
Who coined the term ‘hydroponics’ and when?
Dr. William Gericke of UC Berkeley coined the term ‘hydroponics’ in the 1930s.
What did Dr. William Gericke contribute to hydroponics?
He advanced the technique of hydroponics.
What discovery was made in the 17th century regarding plant growth?
Researchers discovered that plants could grow in water if the right minerals were added.
What has driven modern hydroponics?
Modern hydroponics has been driven by technological advancements, making it more accessible and efficient.
What are the ancient roots of hydroponics?
Hydroponics has ancient roots, potentially dating back to the Hanging Gardens of Babylon.
Who coined the term ‘hydroponics’ and when?
Dr. William Gericke of UC Berkeley coined the term ‘hydroponics’ in the 1930s.
What did Dr. William Gericke contribute to hydroponics?
He advanced the technique of hydroponics.
What is hydroponics?
Hydroponics is a method of growing plants without soil, using nutrient solutions instead.
What are some modern applications of hydroponics?
- Urban farming in cities with limited space. 2. NASA’s space exploration experiments for growing food in space. 3. Agricultural production in non-arable land to increase food security.
How does hydroponics work?
In hydroponics, plant roots absorb water and nutrients from a nutrient solution instead of soil. Oxygen may come from the air or the solution.
What is a wick system in hydroponics?
A wick system uses absorbent material to draw the nutrient solution up to the plant roots. It can function without electricity.
What is deep-water culture (DWC) in hydroponics?
In DWC, plants sit in a tray above a nutrient solution, with roots extending into the solution. An air pump creates bubbles to aerate the solution.
What is an ebb-and-flow system in hydroponics?
An ebb-and-flow system uses a pump to send nutrient solution to the plants, which then drains back to the reservoir, allowing roots access to oxygen.
What is the nutrient film technique (NFT) in hydroponics?
In NFT, plants grow in angled channels where nutrient-rich water flows through the roots and is recirculated back to the top.
What is an aeroponic system?
An aeroponic system suspends plants in air, allowing roots to absorb oxygen from the air while being periodically sprayed with a nutrient-rich mist.
What are the benefits of hydroponics?
Hydroponics offers faster plant growth, reduced water usage, and controlled nutrient and environmental conditions.
What is hydroponics?
Hydroponics is a method of growing plants without soil, by using mineral nutrient solutions in water.
What are the fundamental principles of hydroponics?
The fundamental principles include providing plants with essential nutrients directly through water and controlling the growing environment, including light, temperature, and pH.
What are inert mediums in hydroponics?
Inert mediums are chemically neutral and do not provide any nutritional value to the plants; they only support the plants’ roots.
What is perlite?
Perlite is a lightweight, granular material that is white in color.
What is coco coir?
Coco coir is derived from coconut shell fiber and is a completely natural product, sometimes referred to as coco peat.
What is the objective of learning about hydroponics?
The objective is to understand the basics of hydroponics and its benefits over traditional soil-based agriculture, and to identify different types of hydroponic systems.
What can students explain about hydroponics?
Students can explain what hydroponics is and how it works.
What can students identify regarding hydroponic systems?
Students can identify different types of hydroponic systems.
