Step 1: Temperature Requirements for Wheat.
Wheat requires a cool climate for proper growth, with a temperature range of 10°C to 15°C. West Bengal and the extreme southern states of India experience higher temperatures, particularly during the wheat growing season, which is not suitable for wheat cultivation.
Step 2: Soil and Irrigation Constraints.
Additionally, the soils in these regions are not always ideal for wheat, and the lack of sufficient irrigation facilities further limits its cultivation. Rice is more suited to the climate and soil of West Bengal and southern India, where water availability is higher.