Amending the soil with agricultural lime will do what to the soil pH?

Amending the soil with agricultural lime will do what to the soil pH?

• A. Raise the soil pH
• B. Lower the soil pH
• C. No change in pH
• D. Variable changes depending on lime type

Answer: (A)

Adding agricultural lime raises soil pH by neutralizing acidity. Lime supplies carbonate that reacts with hydrogen ions and aluminum ions in acidic soils, reducing the concentration of acidity in the soil solution. This neutralization shifts the pH toward neutral and also lowers the toxicity of aluminum to roots, which helps root growth in acidic conditions. The amount the pH rises depends on soil buffering capacity, lime quality and particle size, how much lime is applied, soil moisture, and how long it has to react. So, the overall effect is an increase in pH, not a decrease or no change, and while different lime products can influence how quickly and how much pH changes, agricultural lime is used to raise pH.

Adding agricultural lime raises soil pH by neutralizing acidity. Lime supplies carbonate that reacts with hydrogen ions and aluminum ions in acidic soils, reducing the concentration of acidity in the soil solution. This neutralization shifts the pH toward neutral and also lowers the toxicity of aluminum to roots, which helps root growth in acidic conditions. The amount the pH rises depends on soil buffering capacity, lime quality and particle size, how much lime is applied, soil moisture, and how long it has to react. So, the overall effect is an increase in pH, not a decrease or no change, and while different lime products can influence how quickly and how much pH changes, agricultural lime is used to raise pH.