Soils
The three primary soil particle sizes
Sand, Silt, Clay
The simple type of hydroponics the class created in the classroom
Kratky
A soil alternative that is mined rock heated and spun
rock wool
EC is short for this term that measures the amount of nutrients in a solution
electrical conductivity
N-P-K
The soil particle with the highest surface area
Clay
Most hydroponic systems require this input, making them differ from Kratky systems
Pump
Mined rock that is heated and popped
perlite
A range of 0-14 that helps to identify how easily a plant will be able to uptake different nutrients
pH
Fertilizers can be divided into these two categories which affect application methods
Dry vs liquid
Live or decaying microorganisms that return nutrients to the soil
Organic Matter
A tank that holds nutrient solution in hydroponic systems
Nutrient reservoir
This soil alternative was used with the pine seeds and is made of recycled paper
Pitmoss
The amount and size of pores between soil particles
soil porosity
These little things break down materials into plant available nutrients
When space between soil solids allows for water to travel through
Soil Permeability
One type of hydroponics that uses a flood table
Ebb and flow, or deep water culture
Soil alternative that is mined from bogs in Canada
Peatmoss
The ability of a soil's texture to hold water against the force of gravity
Water holding capacity
Many plant nutrients have this charge when in soil solution
positive
Clay has a high level of this that attracts nutrients to it
Cation Exchange Capacity
2 part: The addition of this transforms hydroponics into this type of system as the nutrient source changes.
Fish, aquaponics
An soil alternative made that is made up of organic matter with an extremely high water holding capacity
coco coir
Measurement of total negative charge on the surface of a substance (full term)
Cation Exchange Capacity
Additional macronutrients required is smaller amounts than N-P-K
Calcium, Magnesium, Sulphur