Question

The continued use of fertilizer can cause change in the pH of the growing medium. Which of the following materials will make the pH more alkaline?

A. Ammonium sulfate
B. Calcium nitrate
C. Potassium chloride
D. Nitrate of soda

Answer 1

B. Calcium nitrate

Step-by-step explanation:

Calcium nitrate is one of the materials that will increase the pH of the soil and make it more alkaline in nature.

Calcium nitrate is helps to increase the alkalinity of soils.

• For a plant to take up nitrate, it must discharge or lose a hydroxyl ion.
• A hydrogen ion is used to take up the nitrate.
• This releases more hydroxyl into the soil than usual.
• Ammonium sulfate reduces soil pH.