There are four major reasons for soils to become acidic: rainfall and leaching, acidic parent material, organic matter decay, and harvest of high-yielding crops. Wet climates have a greater potential for acidic soils. Harvest of high-yielding crops plays the most significant role in increasing soil acidity.
Then, how can you correct acidity in the soil?
Lime: Limestone is the most common soil additive for raising pH of your soil to make it less acidic. You'll generally see two types: calcitic limestone (which is mostly calcium carbonate), and dolomitic limestone (which also adds magnesium to the soil). Both work equally well at raising soil pH.
What do you add to soil that is too acidic?
The most common way to raise the pH of soil is to add pulverized limestone to the soil. Limestone acts as a soil acid neutralizer and consists of either calcium and magnesium carbonate or calcium carbonate. These are called dolomitic limestone and calcitic limestone respectively.
What do farmers spread on acidic soil?
The effects of agricultural lime on soil are: it increases the pH of acidic soil (the lower the pH the more acidic the soil); in other words, soil acidity is reduced and alkalinity increased. it provides a source of calcium and magnesium for plants. it permits improved water penetration for acidic soils.