What role does pH play in turf management?

pH plays a crucial role in turf management primarily because it influences nutrient availability in the soil. The pH level of the soil determines how well plants can access essential nutrients. Different nutrients are available to grasses under varying pH conditions; for example, nutrients like nitrogen, phosphorus, and potassium are most available at a neutral pH (around 6.5 to 7.5). When the pH diverges from this optimal range, certain nutrients may become less available or may even become toxic due to solubility changes.

Managing the pH of the soil is therefore critical. Regular soil testing can help turf managers determine the current pH level and amend the soil accordingly—either by adding lime to increase the pH in acidic soils or sulfur to decrease the pH in alkaline soils. This ensures that grass plants receive the nutrients they need for healthy growth, which ultimately leads to a more resilient and robust turf. This understanding is essential for making informed decisions regarding fertilization and overall turf health management.