Why should you have soil tested to determine the pH level?

Why should you have soil tested to determine the pH level?

• A. High pH can cause acid-loving plants to lack overall growth and become chlorotic.
• B. Soil pH has no effect on nutrient uptake.
• C. Low pH always makes nutrients unavailable.
• D. pH testing is only needed for lawns.

Answer: (A)

Soil pH dictates how soluble and accessible nutrients are to plant roots. Testing reveals whether the pH is in the range that lets essential elements dissolve in the soil solution and be taken up by plants. For acid-loving plants, a high soil pH means the soil is too alkaline for their roots to efficiently absorb nutrients like iron. That can lead to poor growth and chlorosis (yellowing leaves) even when nutrients are present. It’s not accurate to say pH has no effect on nutrient uptake, nor that a low pH always makes nutrients unavailable. Different nutrients become available at different pH levels, and many plants require pH within a specific range to optimize growth. And pH testing isn’t only for lawns; all garden beds, trees, shrubs, and container plantings benefit from knowing and adjusting the soil pH to suit the plants you’re growing.

Soil pH dictates how soluble and accessible nutrients are to plant roots. Testing reveals whether the pH is in the range that lets essential elements dissolve in the soil solution and be taken up by plants. For acid-loving plants, a high soil pH means the soil is too alkaline for their roots to efficiently absorb nutrients like iron. That can lead to poor growth and chlorosis (yellowing leaves) even when nutrients are present.

It’s not accurate to say pH has no effect on nutrient uptake, nor that a low pH always makes nutrients unavailable. Different nutrients become available at different pH levels, and many plants require pH within a specific range to optimize growth. And pH testing isn’t only for lawns; all garden beds, trees, shrubs, and container plantings benefit from knowing and adjusting the soil pH to suit the plants you’re growing.