Step 1: Understanding the Question:
This question tests knowledge of zero tillage and its success in cropping systems.
Step 2: Detailed Explanation:
Zero tillage (no-till farming) is most successful in the rice-wheat cropping system of the Indo-Gangetic plains.
Wheat is sown directly into the standing rice stubble.
It saves time, labour, and water, and improves soil health.
Rice crop in monocropping (A): Zero tillage is not suitable for rice.
Wheat crop in monocropping (C): Zero tillage is possible but not as successful.
Rice crop in rice-wheat (D): Rice is not grown under zero tillage (puddled rice).
Thus, zero tillage is successful for wheat in the rice-wheat system.
Step 3: Final Answer:
Thus, zero tillage is successful in the wheat crop in rice-wheat, which corresponds to option (B).
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