The ratio of gross cropped area to the net sown area is called
- A.cropping intensity
- B.intensity of crop rotation
- C.crop productivity
- D.cropping diversity
Correct answer
Explanation
The correct answer is A, cropping intensity. Cropping intensity is gross cropped area divided by net sown area, usually shown as a percentage, and it tells how many times the same land is cropped in a year.
Net sown area is the land sown with crops at least once in a year, counted only once. Gross cropped area counts a field once for every crop grown on it in that year, so a field sown twice is counted twice. If all the net sown area were cropped only once, the intensity would be 100 per cent; double cropping everywhere would make it 200 per cent. India's cropping intensity is roughly 140 to 155 per cent. It is high where irrigation allows two or three crops, as in Punjab, Haryana and West Bengal.
B is wrong because crop rotation means changing crops on a field over seasons, not this ratio. C is wrong because productivity is output per hectare. D is wrong because cropping diversity is the variety of crops grown in an area.
Exam tip: Cropping intensity = (gross cropped area ÷ net sown area) × 100; irrigation raises it.
Practice Questions
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