Understanding Crops for the Lower Gangetic Plain's Humid Climate

The question asks us to identify the most suitable pair of crops for the lower Gangetic plain, characterized by a humid climate and high temperature throughout the year. This description points towards a region experiencing warm to hot conditions with significant moisture year-round, typical of tropical or subtropical areas with high rainfall or proximity to large water bodies like the Ganga river delta.

Climate Characteristics of the Lower Gangetic Plain

• Temperature: High temperature throughout the year. This implies average temperatures are consistently warm or hot, without a distinct cold winter season like in northern parts of India.
• Humidity: Humid climate. This means there is a high amount of moisture in the air, often associated with high rainfall, monsoons, or being near coastal/deltaic regions.

Such a climate profile is ideal for crops that thrive in hot and wet conditions.

Analyzing Crop Requirements vs. Climate

Let's look at the requirements of the crops mentioned in the options:

• Paddy (Rice):
  • Requires high temperature, generally above \(25^\circ\text{C}\).
  • Needs high humidity and heavy rainfall (over \(100 \text{ cm}\) annually).
  • Often requires flooded fields or standing water during growth.
  • It is primarily a Kharif crop (summer/monsoon season) in India, grown during the period of high temperature and rainfall.

  Paddy is very well-suited to the described climate of the lower Gangetic plain.

• Jute:
  • Requires high temperature, typically between \(25^\circ\text{C}\) and \(35^\circ\text{C}\).
  • Needs high humidity and heavy rainfall (about \(150-200 \text{ cm}\)) during the growing period.
  • It is a water-intensive crop, often grown in deltaic regions.
  • It is primarily a Kharif crop.

  Jute is also very well-suited to the described climate of the lower Gangetic plain, especially in deltaic areas which are part of the lower Gangetic plain.

• Wheat:
  • Requires moderate temperature (\(10-15^\circ\text{C}\) during growth and \(20-25^\circ\text{C}\) during ripening).
  • Needs moderate rainfall (\(50-75 \text{ cm}\)).
  • It is a Rabi crop (winter crop), grown during the cooler months.

  Wheat is not suitable for a region with high temperature throughout the year.

• Cotton:
  • Requires high temperature (\(21-30^\circ\text{C}\)) and sunny weather.
  • Needs light rainfall (\(50-100 \text{ cm}\)), but dry and sunny weather is crucial during the ripening stage.
  • Requires about 210 frost-free days.

  While cotton needs high temperatures, the requirement for dry, sunny weather at maturity and relatively less rainfall compared to paddy and jute makes it less ideally suited than paddy and jute for a region described as having *humid climate with high temperature throughout the year* where humidity and high rainfall are characteristic.

Evaluating the Pairs of Crops

Based on the crop requirements and the climate of the lower Gangetic plain:

• Paddy and cotton: Paddy is suitable, but cotton is less ideal due to the year-round humid conditions potentially interfering with the dry ripening period it needs.
• Wheat and Jute: Jute is suitable, but wheat is not suitable due to the high temperature throughout the year (wheat needs cooler temperatures).
• Paddy and Jute: Both Paddy and Jute require high temperatures and high humidity/rainfall. These conditions perfectly match the description of the lower Gangetic plain's climate.
• Wheat and cotton: Neither wheat nor cotton are ideally suited for the described climate throughout their growth cycle. Wheat requires cooler temperatures, and cotton needs dry conditions for ripening.

Therefore, the pair of crops that is most suitable for the lower Gangetic plain with a humid climate and high temperature throughout the year is Paddy and Jute.

Revision Table: Crop Suitability for Lower Gangetic Plain

Additional Information: Agricultural Regions in India

India has diverse climate regions supporting various crops. Understanding the climate is key to determining crop suitability.

• Kharif Crops: Grown during the monsoon season (June-September/October). Examples include Paddy, Jute, Maize, Bajra, Jowar, Tur, Moong, Urad, Cotton, Groundnut, Soyabean. These generally require high temperature and rainfall.
• Rabi Crops: Grown during the winter season (October/November-March/April). Examples include Wheat, Barley, Peas, Gram, Mustard. These generally require cooler temperatures during growth and warm temperatures for ripening.
• Zaid Crops: Grown for a short period between Rabi and Kharif seasons (March-June). Examples include Watermelon, Muskmelon, Cucumber, vegetables, fodder crops. These thrive in warm/hot temperatures.

The lower Gangetic plain is a major agricultural region in India, primarily known for rice cultivation due to its fertile alluvial soil and favorable climate for paddy. Jute cultivation is also significant, especially in West Bengal, which is part of this plain, benefiting from the hot and humid conditions.