Podcast
Questions and Answers
What is the primary cause of lowering the pH of calcareous soils under submerged conditions?
What is the primary cause of lowering the pH of calcareous soils under submerged conditions?
- Formation of sulfuric acid from inorganic sulfur compounds
- Deposition of acid rain
- Production of carbonic acid during organic matter decomposition (correct)
- Uptake of cations by plants
Which of the following processes is responsible for the formation of nitric acid (HNO3) in the soil?
Which of the following processes is responsible for the formation of nitric acid (HNO3) in the soil?
- Cation uptake by plants
- Organic matter decomposition
- Sulfur oxidation
- Nitrification (correct)
Which type of soil acidity is determined by measuring the soil pH using a pH meter?
Which type of soil acidity is determined by measuring the soil pH using a pH meter?
- Active acidity (correct)
- Potential acidity
- Exchangeable acidity
- Reserve acidity
Which of the following is the primary factor responsible for the formation of sulfuric acid (H2SO4) in the soil?
Which of the following is the primary factor responsible for the formation of sulfuric acid (H2SO4) in the soil?
Which type of soil acidity is determined by titration and provides information on how much lime to apply?
Which type of soil acidity is determined by titration and provides information on how much lime to apply?
Which of the following is a common characteristic of plants that prefer slightly acidic soil conditions?
Which of the following is a common characteristic of plants that prefer slightly acidic soil conditions?
What is the relationship between pH and pOH according to the text?
What is the relationship between pH and pOH according to the text?
Which ion is responsible for soil alkalinity according to the text?
Which ion is responsible for soil alkalinity according to the text?
What is the definition of pH according to the text?
What is the definition of pH according to the text?
Which of the following pH ranges is considered extremely acidic according to the text?
Which of the following pH ranges is considered extremely acidic according to the text?
Which of the following is a source of soil acidity according to the text?
Which of the following is a source of soil acidity according to the text?
What is the relationship between pH and redox potential in soils?
What is the relationship between pH and redox potential in soils?
What is the main effect of soil sodicity on plant growth?
What is the main effect of soil sodicity on plant growth?
How does soil sodicity degrade soil properties?
How does soil sodicity degrade soil properties?
What is the reference electrode used to measure redox potential?
What is the reference electrode used to measure redox potential?
What is the redox potential range for oxidized soils?
What is the redox potential range for oxidized soils?
What can be estimated from the redox potential measurement of a soil?
What can be estimated from the redox potential measurement of a soil?
What is the range of redox potentials for highly reduced soils?
What is the range of redox potentials for highly reduced soils?
Flashcards are hidden until you start studying
