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Option 4 : All of the above
Option 4 is correct.
Black soil:
- Black soil is also known as regur soil.
- Black soil has a high water-retaining capacity.
- Most of the Deccan is occupied by Black soil.
- Black soil has poor nitrogen content.
Black soil is rich in:
- Aluminium (10 %)
- Iron oxide (9 - 10 %)
- Lime (6 - 8 %)
- Calcium (6 - 8 %)
- Potassium (6 - 8 %)
- Magnesium.(6 - 8 %)
| Mains crops cultivated in black soil are |
| Cotton |
| Tobacco |
| Oilseeds |
| Jowar, ragi, and maize |
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