[Edit]
It raises the pH of soil, i.e. makes it less acidic. Lime is added to "sweeten" the soil. In areas where the soil is sandy, lime is often added to make the soil less acidic for crops like corn and beans.
You can use Aluminum Sulfate to lower the pH, to make it more acidic. This would be used in soils that are basic and you are trying to grow Azaleas, Rhododendrons, Junipers, Hydrangeas, Pines and other acid loving plants.
First answer by ID1444623410. Last edit by Morgen1967. Contributor trust: 16 [recommend contributor]. Question popularity: 23 [recommend question]





