What farming practice is best known for carbon sequestration?

• A. Conventional tillage
• B. Organic farming
• C. No-till farming
• D. Crop rotation

Answer: (C)

No-till farming is best known for carbon sequestration as it minimizes soil disturbance, helping to maintain and increase organic matter in the soil, which in turn stores carbon. When farmers use no-till practices, they leave crop residues on the surface, which decomposes slowly and becomes part of the soil. As a result, carbon dioxide from the atmosphere is captured and stored in the soil as organic carbon.

This practice contrasts with conventional tillage, which involves turning over the soil and can release stored carbon into the atmosphere, thereby contributing to greenhouse gas emissions. While organic farming can promote healthy soil and biodiversity, it does not specifically focus on the carbon sequestration benefits associated with no-till. Crop rotation is beneficial for soil health and pest management but does not have the same direct impact on carbon storage as no-till practices. Overall, no-till farming is recognized for its ability to effectively sequester carbon in agricultural systems.