UPSC Prelims 2020 Question:

"The crop is subtropical in nature. A hard frost is injurious to it. It requires at least 210 frost -free days and 50 to 100 centimeters of rainfall for its growth. A light well -drained soil capable of retaining moisture is ideally suited for the cultivation of the crop." Which one of the following is that crop?

Explanation:

• Cotton is grown in tropical and subtropical warm humid climate. Other factors affecting cotton crop include:
  
  

• Temperature: The ideal temperature ranges from 20 to 28 degrees Celsius annually. Bright sunshine and an even distribution of temperatures are preferred.
  
  

• Rainfall: Annual Rainfall of 50 to 100 cm is ideal for cotton. However, rainfall during harvest is harmful.
  
  

• Soil: Fertile saline soil with high water retention capacity is ideal. Loamy soil with high calcium carbonate is best suited for cotton cultivation.
  
  

• Other conditions: Cotton cultivation requires at least 180 frost-free days. At least 210 frost free days are desirable for cotton production.
  
  

Therefore, option (1) is the correct answer.

Subject: Geography | Agriculture and Allied Sectors