1.2.1 hydroponic culture

What is the definition of hydroponics?

Hydroponics is a method of growing plants without soil.

How does hydroponic water usage compare to traditional soil-based systems?

Hydroponics uses less water than traditional soil-based systems.

What types of plants may grow with their roots exposed to the nutritious liquid?

Terrestrial or aquatic plants may grow with their roots exposed to the nutritious liquid.

What are some examples of inert media used to physically support the roots?

The roots may be physically supported by an inert medium such as perlite, gravel, or other substrates.

How do roots affect the nutrient solution and its biology?

Roots can cause changes of the rhizosphere pH and root exudates can affect rhizosphere biology and physiological balance of the nutrient solution by secondary metabolites.

What are the different sources of nutrients used in hydroponic systems?

The nutrients used in hydroponic systems can come from many different sources, including fish excrement, duck manure, purchased chemical fertilizers, or artificial nutrient solutions.

What is a notable advantage that hydroponics offers?

Hydroponics offers many advantages, notably a decrease in water usage in agriculture.

What future possibility does hydroponics provide for people in harsh environments?

Since hydroponics takes much less water to grow and produce, it could be possible in the future for people in harsh environments with little accessible water to grow their own food.

Which specific plant serves as a model organism in plant science and genetics?

Arabidopsis serves as a model organism in plant science and genetics.

What are the names of the specific crops commonly grown hydroponically?

Plants commonly grown hydroponically in a greenhouse, on inert media, include tomatoes, peppers, cucumbers, strawberries, lettuces, and cannabis, usually for commercial use.