Which liming material has a chemical formula of CaSiO3 and a CCE of 60 to 90?

The correct answer is indeed calcium silicate, which is scientifically represented by the chemical formula CaSiO3. This compound primarily consists of calcium oxide and silica, contributing to its function as a soil amendment. The CCE, or Calcium Carbonate Equivalent, is a measure of the soil amendment's effectiveness in increasing soil pH and reducing acidity. With a CCE of 60 to 90, calcium silicate is less effective than some other liming materials, but it still plays an important role in modifying soil acidity and improving nutrient availability.

Calcium silicate is valued not only for its liming properties but also for the additional benefits it offers such as providing silica, which is essential for certain plant growth and strengthening cell structures. Additionally, it can help improve soil structure and water retention, making it a multifaceted amendment for agricultural purposes.

The other choices involve different compounds that serve as liming materials but each has unique properties and compositions, making them distinct. For instance, calcitic limestone primarily contains calcium carbonate, while hydrated lime and burned lime are forms of calcium hydroxide and calcium oxide, respectively. Each of these alternatives varies in CCE and effectiveness in soil acidity management, thereby distinguishing them from calcium silicate.