Question

The rotational intensity for rice – potato – fallow system will be

• A. 100%
• B. 150%
• C. 200%
• D. 300%

Hint:

Always remember that ______Fallow______ periods are never counted as crops in the numerator of the formula, but the time duration they occupy must be included in the denominator (total years).

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Cropping Rotational Intensity (RI) is an agricultural metric that expresses the efficiency and frequency of land utilization under a specific crop rotation sequence over a given time period.
Key Formula or Approach:
The Rotational Intensity (expressed as a percentage) is calculated using the following formula:
\[ \text{Rotational Intensity (\%)} = \frac{\text{Number of crops in the rotation}}{\text{Duration of the crop rotation (years)}} \times 100 \]

Step 2: Detailed Explanation:
Let us analyze the given cropping system: ______Rice – Potato – Fallow______.
1. ______Identify the number of crops:______
- Crop 1: Rice (cultivated during the Kharif season).
- Crop 2: Potato (cultivated during the Rabi season).
- Fallow is not a crop; it represents a period where the field is left uncultivated (Zaid season).
Therefore, the total number of crops in this rotation is ______2______.
2. ______Identify the duration of the rotation:______
- The sequence "Kharif (Rice) $\rightarrow$ Rabi (Potato) $\rightarrow$ Zaid (Fallow)" is completed within a single agricultural year.
Therefore, the duration of the rotation is ______1 year______.
3. ______Calculate the Rotational Intensity:______
Using the formula:
\[ \text{Rotational Intensity} = \frac{2}{1} \times 100 = 200\% \]

Step 3: Final Answer:
The rotational intensity of the rice – potato – fallow system is 200%, which corresponds to option (C).