The continued use of fertilizer can cause a 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

B. Calcium nitrate

Explanation:

A soil will have an increase in pH if calcium nitrate is added to it. Calcium nitrate typically increases the alkalinity of soils when added to it.

Alkalinity is the degree of hydroxide ions concentration in the soil. This leads to increasing pH which tends towards the region of more bascity.

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