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प्रश्न
With reference to black soil answer the following:
Give one chemical property of this soil.
उत्तर
It has high quantities of lime, iron and magnesium and is poor in phosphorus, nitrogen and organic matter.
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संबंधित प्रश्न
Give geographical reason for the following:
Khadar is more fertile than banghar soil.
Name the following :
An important transported soil of India.
Give a geographical reason for each of the following:
Wind is a common agent of soil erosion in arid regions.
What do you understand by Humus?
Alluvial Soils are also called ‘Riverine Soils’. Why?
Why is Laterite Soil unsuitable for cultivation? Name an area where this Soil is found.
How is Regur Soil formed? Mention four important features of Regur Soil.
Why is the Red Soil red in colour?
Give a single word for the following:
The process of percolation by which valuable mineral nutrients are washed down from the top layer of the Soil only to deposit them in the lower layers, making the top Soil infertile.
Complete the following table with reference to the soil.
| Action | Effect | Result (w.r.t. fertility) |
| Construction of embankments | ||
| Wind speed decreased | ||
| Farmland is kept fallow for some period | ||
| Humus content increased. | ||
| Trenches are dug across a slope | ||
| Litter is burnt on the farm. | ||
| Proves favorable for micro-organisms | ||
| The salt content in the soil increases | ||
| Chemical fertilizers used excessively |
