Why might farmers choose to monitor soil pH over time?

Monitoring soil pH over time is crucial for ensuring optimal nutrient availability in agricultural practices. Soil pH affects many chemical processes in the soil, including the solubility of nutrients that plants require for growth. Different crops have specific pH ranges in which they thrive, and if the pH is either too high or too low, essential nutrients may become unavailable or may be present in toxic quantities.

For example, in acidic soils (low pH), nutrients such as phosphorus may become insoluble and unavailable to plants, while in alkaline soils (high pH), micronutrients like iron may not be available. By regularly monitoring and adjusting soil pH, farmers can optimize their fertilization strategies and improve crop health and yields. This proactive approach allows for better planning and management of the soil resource for sustainable farming practices.