Question

Which of the following is a primary function of a moldboard plow in soil tillage?

• A. Breaking soil compaction layers
• B. Cutting and inverting the soil slice
• C. Pulverizing soil clods
• D. Leveling the soil surface

Hint:

Moldboard plows are primarily used for turning over the upper layer of the soil, bringing fresh nutrients to the surface.

Answer 1

The Correct Option is B

Key Concept: Each tillage implement is named for its core mechanical action on soil.

Why it's correct: The moldboard plow's curved surface cuts and physically inverts the soil slice, burying weeds and residue while exposing fresh soil for a clean seedbed.

Why others fail: Breaking compaction is a subsoiler's job, pulverizing clods is done by a harrow, and leveling is done by a leveler/planker — each a separate implement with a different mechanism.