Which soil amendment can add calcium without altering pH and improve drainage?

Which soil amendment can add calcium without altering pH and improve drainage?

• A. Calcium carbonate
• B. Lime
• C. Calcium sulfate or gypsum
• D. Dolomitic limestone

Answer: (C)

Calcium sulfate, commonly known as gypsum, serves as an effective soil amendment that adds calcium to the soil without significantly altering the pH level. This characteristic is particularly beneficial in acidic or neutral soils where maintaining a stable pH is desired for optimal plant growth. In addition to its calcium content, gypsum improves drainage and soil structure by displacing sodium with calcium and preventing soil compaction. The ability of gypsum to enhance drainage is crucial in situations where saturated soil can lead to root rot and other plant health issues. Unlike other amendments that may raise pH, such as lime or calcium carbonate, gypsum helps maintain the existing acidity while still providing essential nutrients. This makes it a preferred choice in agricultural and gardening practices where calcium is necessary, but pH stability is equally important.

Calcium sulfate, commonly known as gypsum, serves as an effective soil amendment that adds calcium to the soil without significantly altering the pH level. This characteristic is particularly beneficial in acidic or neutral soils where maintaining a stable pH is desired for optimal plant growth. In addition to its calcium content, gypsum improves drainage and soil structure by displacing sodium with calcium and preventing soil compaction.

The ability of gypsum to enhance drainage is crucial in situations where saturated soil can lead to root rot and other plant health issues. Unlike other amendments that may raise pH, such as lime or calcium carbonate, gypsum helps maintain the existing acidity while still providing essential nutrients. This makes it a preferred choice in agricultural and gardening practices where calcium is necessary, but pH stability is equally important.