Question

What kind of soil is considered as organic soil?

• A. Soils whose organic composition is less than 70%.
  
• B. Soils whose organic composition is 80% and above.
• C. Soil which contains 30% or more organic matter.
• D. Soil which contains more fertilizers of Sodium, potassium and Calcium.

Answer 1

The correct option is C Soil which contains 30% or more organic matter.

The soil consists of organic matter, water, minerals and air. Soil which contains 30% or more organic matter is considered as organic soil. Organic matter is the organic component of soil which includes residues of dead plants, animals and other organisms. It consists of nutrients necessary for plant growth such as Nitrogen, Phosphorus and Potassium.