Which of the following is a common method of treating alkaline soil in crop production?

Alkaline soil has a pH above 7.0 and is usually characterized by high levels of calcium, magnesium, and sodium. This type of soil can lead to nutrient deficiencies in plants because some essential nutrients become less available to plants as the pH increases.

Sulphur reacts with water in the soil to form sulphuric acid, which can lower the soil pH and make essential nutrients more available to plants. Adding sulphur also helps to break down soil organic matter, which releases nutrients into the soil.