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प्रश्न
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 |
उत्तर
| Action | Effect | Result (w.r.t. fertility) |
| Construction of embankments | Reduction in the erosion of soil due to heavy rains. | Increase in Fertility |
| Planting trees | Wind speed decreased | Increase in Fertility |
| Farmland is kept fallow for some period | The fertility of soil gets maintained. | Increase in Fertility |
| Use of organic manures | Humus content increased. | Increase in Fertility |
| Trenches are dug across a slope | Check over the velocity of water running along the slopes and hence reduction in soil erosion | Increase in Fertility |
| Litter is burnt on the farm. | The proportion of ash in the soil gets increased. | Decrease in Fertility |
| Use of organic manures | Proves favorable for micro-organisms | Increase in Fertility |
| Excessive irrigation | The salt content in the soil increases | Decrease in Fertility |
| Chemical fertilizers used excessively | Decrease the number of microorganisms and so the proportion of humus in the soil | Decrease in Fertility |
संबंधित प्रश्न
State two cash crops that grow well in alluvial soil.
State the geographical term for each of the following processes:
The process by which rainwater, flowing in a definite path, removes the topsoil, thus causing deep cuts to the surface of the land.
Differentiate between transported soil and In-situ soil, quoting a suitable example for each.
Answer the following questions in about 30 words.
What steps can be taken to control soil erosion in the hilly areas?
Name the following :
An important transported soil of India.
Name the following:
Soil that is rich in iron oxide.
Which subject deals with the study of Soil?
What is meant by ‘in Situ’?
Name one important crop that thrives best in Regur and Red Soil, and a sea-port from where it is exported.
How is Alluvial soil formed? Why is this soil agriculturally important?
Define ‘Leaching’? In which region South of the Tropic of Cancer, can one find Soil formed by ‘Leaching’?
Name the varieties of Alluvial Soils. Where are they found?
Alluvial soils found in the lower courses and the upper courses of rivers.
Name the soil which
Covers the summits of the Eastern Ghats.
Which Soil is found suitable to grow coffee in Karnataka?
Which one of the following soil is the best for cotton cultivation?
Which type of soil develops due to high temperature and evaporation?
Availability of water and minerals in the soil for maximum absorption by roots is in the
