Choose the correct answer from the options given below
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To solve this matching problem quickly, associate "Earthing up" with Potato (C-II). This is a highly specific, standard agronomic operation, which immediately helps identify the correct option.
Step 1: Understanding the Concept:
This problem requires matching key agronomic practices, intercropping systems, and weed management methods with their most characteristic target crops. Step 2: Detailed Explanation:
Let us analyze each pair:
(A). Blanket spray: In asugarcane ratoon crop, after harvest, the entire field is often covered with stubble and trash. A pre-emergence chemical spray is applied uniformly over the entire surface area (blanket spray) to control weeds before the ratoon sprouts emerge. Thus, (A) matches with (III).
(B). Trash mulch: Insugarcane cultivation, placing dry leaves (trash) in the inter-row spaces as mulch is a standard practice to conserve soil moisture, suppress weeds, and regulate soil temperature. Thus, (B) matches with (IV).
(C). Earthing up: This is a critical cultural operation inpotato cultivation, where soil is piled around the base of the plant to cover the developing tubers. This prevents greening of the tubers (due to solar exposure) and promotes stolon development. Thus, (C) matches with (II).
(D). Soybean intercropping: Intercropping soybean withmaize is a widely adopted and highly productive cropping system in India. It improves nitrogen utilization and provides a balanced canopy architecture. Thus, (D) matches with (I).
This gives the correct combination: (A) - (III), (B) - (IV), (C) - (II), (D) - (I). Step 2: Final Answer:
The correct option is (A).
