CEC
The 2 components in a soil with high CEC
What is clay and organic matter
The cation that predominates at a pH above 8.5
What is sodium?
How much more acidic a pH of 5 is compared to a pH
of 7
What is 1000
A base combined with an acid
What is a salt?
2 symptoms of salt toxicity in plants.
What is wilting and dessication on the leaf margins?
The ion that plants release in exchange for cations.
What is hydrogen?
What is the non-nutrient cation soluble enough at very acid pH to become toxic.
What is aluminum?
6.5 - 7.5
What is ideal pH for most plants?
The name for soils high in salts
What is saline?
The method that is used to measure salts in solution.
What is Electrical Conduction?
The area right around the root
What is the rhizosphere?
The macronutrient that get's tied up with calcium and sometimes iron.
What is phosphorous?
the ability to resist a change in pH
What is the definition of buffering capacity?
Sodium's affect on soil structure
What is deflocculation?
The name for soils that are high in sodium
What is sodic soils?
The 4 base cations in prairie soils.
What is calcium, magnesium, potassium and sodium
A substance used to make a soil more alkaline
What is lime?
The name for hydrogen ions in solution
What is active acidity?
A salt that is more soluble in water than gypsum.
What are soluble salts?
A compound that can dissolve high sodium by replacing the sodium with calcium
What is gypsum? CaSO4
Percent of exchange sites occupied by base cations
What is base saturation?
The polyatomic ion high in calcareous or high free lime soils.
What is carbonates (CO3)?
A way to dissolve free lime in the soil
What is add organic matter?
A natural way that salts contribute to the soil.
What is parent material?
The EC reading that indicates a saline soil.
What is an EC above 4mS/cm?