Nutrient availability to turfgrass plants is optimal at which pH level?

Nutrient availability to turfgrass plants is optimal in the pH range between 5.5 and 7.5 because this range allows for the maximum solubility and availability of essential nutrients needed for plant growth. Within this pH range, macronutrients like nitrogen, phosphorus, and potassium, as well as micronutrients like iron, manganese, and zinc, are more readily absorbed by turfgrass roots.

When the pH is below 5.5, the soil becomes increasingly acidic, which can lead to the leaching of certain nutrients and the presence of aluminum toxicity, making it difficult for turfgrass to thrive. On the other hand, when the pH exceeds 7.5, the soil becomes alkaline, which can render essential nutrients like iron and manganese less available to the plants. Therefore, maintaining soil pH within the 5.5 to 7.5 range is crucial for healthy turf growth and optimal nutrient uptake.