What is a common method to improve soil fertility?

Liming is a common method to improve soil fertility primarily because it addresses soil pH deficiencies that can limit nutrient availability for plants. Many crops thrive in a specific pH range, typically around 6 to 7. When the pH is too low (acidic), essential nutrients such as nitrogen, phosphorus, and potassium may become less available to plants. By applying lime, which is alkaline, the soil pH can be increased, thereby enhancing nutrient availability and promoting healthier plant growth.

Additionally, lime can help improve soil structure, making it more beneficial for root development and water infiltration. This practice is particularly important in areas where soil acidity can be a problem, and it serves to create a more balanced soil environment conducive to crop production. In contrast, options such as skipping fertilization or continually growing the same crop can lead to nutrient depletion and diminished soil health over time, while ignoring soil tests can prevent farmers from accurately assessing their soil's needs.