Question

Secondary tillage is done primarily

• A. To prepare root bed
• B. To break hard pan
• C. To prepare a fine tilth seed bed
• D. To preserve soil structure

Hint:

Think about what job is left once the soil has already been broken open by the first, heavier tillage pass.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Tillage is carried out in two broad stages. Primary tillage, done with implements like the mould board plough, breaks and turns rough, compact soil. Secondary tillage follows it and works on the already loosened soil.

Step 2: Key Formula or Approach:
To answer this we need to know what job is left for the second stage once the first, heavier stage has already broken the soil open.

Step 3: Detailed Explanation:
Secondary tillage tools, such as harrows, cultivators, and planks, work on soil that primary tillage has already turned and broken. Their job is to crush clods, level the surface, and mix in the top layer, so seeds land in loose, fine soil that lets roots and shoots come through easily.
Breaking a hard pan (option 2) is a deep, heavy job handled by subsoiling or chiselling as part of primary tillage, not secondary tillage.
"Preparing a root bed" (option 1) and "preserving soil structure" (option 4) describe general outcomes of good land preparation overall, not the specific, defining purpose of the secondary pass.
The specific and defining purpose of secondary tillage is producing a fine tilth seed bed, fine, crumbly soil suited for placing seed and getting even germination.

Step 4: Final Answer:
Secondary tillage is done primarily to prepare a fine tilth seed bed.
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