Step 1: Understanding the Concept:
Crop water requirement (WR) is the total depth of water needed to meet evapotranspiration losses and metabolic demands during the growing season.
It varies depending on crop duration, leaf canopy structure, and the growth season.
Step 2: Detailed Explanation:
Let's match each crop with its typical seasonal water requirement:
- (A) Sugarcane: A long-duration crop (12-18 months) with high biomass.
It requires the most water, approximately 150 to 250 cm (matches with (I) 200 cm).
- (B) Rice: Grown in flooded conditions under high evapotranspiration demand.
It requires approximately 90 to 150 cm of water (matches with (II) 100 cm).
- (C) Wheat: A winter-season (Rabi) crop with moderate water demands.
It requires approximately 35 to 45 cm of water (matches with (III) 35 cm).
- (D) Spinach: A shallow-rooted, short-duration leafy vegetable.
It has low transpirational demands and requires only 15 to 25 cm of water (matches with (IV) 15 cm).
This sequence matches Option
Step 3: Final Answer:
The correct match is (A) - (I), (B) - (II), (C) - (III), (D) - (IV).