Lime Application

Lime application involves spreading ground limestone (calcium carbonate) or dolomitic lime (calcium-magnesium carbonate) on fields to neutralize soil acidity and raise the pH to optimal levels for crop growth. The amount of lime needed depends on the current soil pH, the buffer pH, target pH, soil texture, and organic matter content. Agricultural lime varies in effectiveness based on its calcium carbonate equivalent (CCE) and fineness of grind — finer particles react faster with the soil. Because lime takes several months to fully react, it is best applied well before planting, often in fall. Regular soil testing every 2–4 years ensures that lime applications maintain the correct pH range, which maximizes nutrient availability and microbial activity.