Step 1: Ratoon Crop Management Review.
Sugarcane ratoon management refers to post-main crop harvest practices aimed at promoting robust regrowth.
Step 2: Sequence of Actions.
1. Cut emerged shoots at ground level (A) → To eliminate non-productive shoots and foster uniform tillering. 2. Break the sides of ridges with a plough (B) → This facilitates aeration and improves soil contact for emerging shoots. 3. Apply first irrigation after 3–4 weeks (C) → Essential for proper sprouting and development of the ratoon crop. 4. Apply nutrients and perform earthing up (D) → Provides necessary nutrients and anchors the crop.
Step 3: Determination.
Therefore, the correct order of operations is (A), (B), (C), (D).
Final Answer: \[\boxed{\text{Correct sequence = (A), (B), (C), (D).}}\]