Which term describes the practice of disturbing surface topsoil and vegetation as little as possible during planting?

• A. Conservation tillage
• B. Conventional tillage
• C. Deep plowing
• D. Mulching

Answer: (A)

Minimizing soil disturbance and preserving surface residue during planting helps protect the topsoil, reduce erosion, and conserve moisture. This is exactly what conservation tillage aims to do—disturb the soil as little as possible and keep crop residues on the soil surface. It encompasses practices like no-till, reduced-till, and mulch-till, all designed to leave more of the previous crop residue on the field and limit soil disruption during planting.

In contrast, conventional tillage involves turning and mixing the soil more extensively, which disrupts surface cover. Deep plowing takes this disturbance even further. Mulching, while it helps protect soil by covering it, is a technique used to conserve moisture and protect the soil surface rather than a tillage approach that minimizes disturbance during planting.