Is Clay Soil Acidic or Alkaline? How To Know and Improve pH

person digging on soil using garden shovel

We may earn a small commission from affiliate links in this article. Quick Reference: Understanding and Adjusting Clay Soil pH Aspect Details Understanding Soil pH Soil pH measures the acidity or alkalinity of the soil. Values below 7 are acidic, above 7 are alkaline, and 7 is neutral. Soil pH affects nutrient availability to plants. …

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