Question

What is the best pH of the soil for cultivation of plants?

• A. 3.5 - 5
• B. 6.5 - 7
• C. 4.5 - 8
• D. 5.5 - 7

Answer 1

The correct option is D 5.5 - 7

Fertile soil contains sufficient minerals and nutrients needed for plant growth. Most minerals and nutrients are more soluble in slightly acidic soil than in neutral or slightly alkaline soils. The pH range of 5.5-7 is highly suitable for plant growth and hence such a soil is considered fertile. Thus the correct answer is option D.