2021 · Q57
Alluvial soils vary in nature from sandy loam to clay. They are generally
General KnowledgeGeography
- Apoor in potash and rich in phosphorus
- Bpoor in both potash and phosphorus
- Crich in both potash and phosphorus
- Drich in potash and poor in phosphorus
Explanation
Alluvial soils are generally rich in potash but poor in phosphorus (and nitrogen). Options claiming they are poor in potash or rich in phosphorus reverse the standard nutrient profile taught for Indian alluvial soils. The correct description is rich in potash and poor in phosphorus.