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Option 4 : barren after some time.
Concept:
Kharif crops:
- It is an Indian subcontinents crop which is mainly sown in the rainy season, the month of June to September.
- Examples of paddy, maize, soybean, cotton etc.
Rabi crops:
- The crops grown in the winter season, mainly in the month of October to March are called Rabi crops.
- Examples are Wheat, gram, pea and mustard.
Explanation:
Barren after some time:
- In today's world, every commercial crop production field uses a high and excessive amount of chemical fertilizer and pesticides in their field.
- The farmers think using excessive amounts of inorganic fertilizer and pesticides will increase the productivity of the crop field.
- Using these chemicals in high amounts in a field leads to a problem.
- It reduces the essential micronutrients present in the soil.
- These chemicals and pesticides are also responsible for the degradation of soil.
- If farmers continuously use an excessive amount of chemical fertilizer and pesticides, it will turn the fields barren.
Thus, consider the soil of a field in which a farmer is growing paddy crop over and over again using an excess of chemical fertilizers and pesticides in his fields. This practice will make the soil of the fields barren after some time.
Multiple cropping:
- It is a kind of agriculture when two or more crops are grown together than just one crop.
- In this kind of agriculture in one growing season and in the same piece of land multiple crops are grown simultaneously.
- It is a form of polyculture.
- In paddy fields, multiple cropping is known as double cropping, where instead of only one crop, two crops are grown in a year.
- In this process, farmers can double the production from the same bit of land.
- Examples: Onion, tomatoes, and marigold are grown together as an example of multi-cropping.
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