What is the optimal pH range for cotton soil?

The optimal pH range for cotton soil is typically between 6.0 to 7.5. This range is important because it allows for the best nutrient availability and microbial activity, which are crucial for healthy cotton growth. When the soil pH is within this range, essential nutrients like nitrogen, phosphorus, and potassium are more soluble and readily available for uptake by the cotton plants. Furthermore, this pH range supports beneficial soil microorganisms that contribute to soil fertility and plant health.

When pH levels fall below or rise above this optimal range, it can lead to nutrient deficiencies or toxicities that adversely affect cotton plants. For instance, overly acidic soils (below 6.0) can lead to aluminum toxicity and nutrient lockout, while alkaline soils (above 7.5) can hinder the absorption of certain micronutrients. Thus, maintaining the soil pH within the 6.0 to 7.5 range is essential for maximizing cotton yield and quality.