Water and Media
system by which rainwater is collected and used to water plants in the greenhouse or garden.
What is Rainwater Catchment?
Total quantity of photosynthetic light received by a plant.
What are annuals?
Number of nutrients needed for optimal plant growth.
What is 17?
A plant used for ornamental purposes for a particular season.
What is a bedding plant?
The maximum amount of water that can be held in a growing medium against the pull of gravity.
What is Container Capacity?
What is carbon dioxide?
Tips of stems that have been removed from the plant.
What are cuttings?
The three mineral nutrients that are required in the greatest amount for plant growth are called this.
What are Macronutrients?
The name of the condition when a plant is just about to wilt.
Method of lighting that uses a pattern of light and dark to create a LONG-DAY effect.
What is Critical Night Interval (CNI)?
Name of the best soil to be used when planting seeds.
What is germination mix?
Nutrient responsible for green growth (foliage).
What is Nitrogen?
The supplementation of carbon dioxide into the greenhouse environment.
What is carbon dioxide fertilization?
A microorganism that fixes nitrogen into a form plants can use. It creates a healthier environment for root growth.
What is a Bio-stimulant?
American chemist who researched the synthesis of medicinal drugs from plants.
Who is Percy Julian?
Rigid sheets of plastic that provide multiple cells for planting seeds and placing cuttings.
What are plug trays or seeds trays?
Nutrient most responsible for the growth of roots, flowers, fruits and seeds.
What is phosphorous?
The initials for the three macronutrients needed for plant growth. These initials are usually located on bags of fertilizer in varying amounts.
What is N-P-K?
One of teh most important limiting factors in water quality.
What is pH range?
The amount of DLI or DAILY LIGHT INTERVAL needed to grow high quality plants.
What is 'it depends on the crop or plant"?
Do this to prevent algae and fungal growth on growing mediums (germination mix and potting soil).
What is to let the medium dry between waterings?
The term that refers to the difference in daytime and nighttime temperatures.
What is DIF?
Hormones that speed or slow growth of growth in plants.
What are Plant Growth Regulators?