Question:

"Maize-wheat- cotton- berseem" is an example of which crop rotation?

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To find the rotation period, count the total number of crops in standard systems. Since crops are usually divided into two seasons per year (Kharif and Rabi), a 4-crop sequential rotation typically takes 2 years.
  • One year rotation
  • Two years rotation
  • Three years rotation
  • Four year rotation
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Concept:
The duration of a crop rotation is calculated based on the total time taken to complete one full cycle of the listed crops across the sequential cropping seasons (Kharif and Rabi).

Step 2: Detailed Explanation:

Let us break down the cropping sequence "Maize - wheat - cotton - berseem":
1. Maize (Kharif) followed by Wheat (Rabi): This constitutes a standard 1-year cropping sequence.
2. Cotton (Kharif) followed by Berseem (Rabi): This constitutes another 1-year cropping sequence.
Together, these four crops are grown sequentially over four distinct seasons (two Kharif and two Rabi seasons).
This entire cycle takes exactly 2 years to complete before returning to the initial crop (Maize).
Therefore, this is a classic example of a two years rotation.

Step 3: Final Answer

The rotation "Maize-wheat-cotton-berseem" is a two years crop rotation.
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