Answer:
6.2 to 7.0
Explanation:
The “ideal” soil pH is close to neutral, and neutral soils are considered to fall within a range from a slightly acidic pH of 6.2-6.5 to slightly alkaline pH of 7.0-7.5. It has been determined that most plant nutrients are optimally available to plants within this 6.5 to 7.5 pH range, plus this range of pH is generally very compatible to plant root growth.
:-befrank
