Soil testing is essential for determining:

The correct answer is: d) All of the above.

Soil testing is essential for determining the following:

• Soil acidity/alkalinity: The pH of a soil is a measure of its acidity or alkalinity. A pH of 7 is neutral, a pH below 7 is acidic, and a pH above 7 is alkaline. The pH of a soil can affect the availability of nutrients to plants.
• Nutrient levels: Soil testing can determine the levels of essential nutrients such as nitrogen, phosphorus, and potassium. These nutrients are necessary for plant growth.
• Soil texture: Soil texture refers to the size and shape of the particles that make up the soil. The texture of a soil can affect its drainage, water retention, and aeration.

Soil testing is a valuable tool for farmers, gardeners, and landscapers. It can help to ensure that plants have the nutrients they need to grow healthy and strong.