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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
Tick the most suitable answer in question
In addition to the rock particles, the soil contains
With reference to black soil answer the following:
Give one chemical property of this 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.
With reference to Red Soils in India, answer the following questions:
State two advantages of this type of soil.
With reference to Red Soils in India, answer the following questions:
Mention two important crops are grown in this soil.
Terrace farming is an ideal soil conservation method for hilly regions.
What do you understand by Humus?
Where is Laterite Soil found?
State two disadvantages of Laterite Soil.
Why Black Soil needs to be tilled after the first rains?
On the map of India, shade and name an area each of:
(a) Alluvial Soil,
(b) Red Soil,
(c) Desert Soil and
(d) Hill Soil or Mountain Soil.
Name the soil which
is sticky when wet and cracks when dry.
Name the crops for which Red Soils is suitable.
Maharashtra -Types and Overall Distribution of Soil
Observe the map given above and answer the following questions:
- Which soil occupies most of the area in Maharashtra?
- In which areas are laterite soils found?
- Which soil is found in the river valleys of Maharashtra?
- Which soil is found in parts of the Sahyadri ranges?
- In which region is alluvial soil found?
Which of the following soils has self-aeration capacity?
Soil formed by intense leaching is ______.
Which one of the following is the most widespread and most productive category of soil?
What are black soils? Describe their formation and characteristics.
