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प्रश्न
Availability of water and minerals in the soil for maximum absorption by roots is in the –
पर्याय
B-horizon
C-horizon
A-horizon
surface of soil
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उत्तर
A-horizon
Explanation:
A-horizon is top soil, rich in humus. Humus improves the texture of soil, increases soil aeration and water holding capacity of soil as well as provides nutrients to the growing plants. This soil layer also contains minerals. Humus and minerals make the soil fertile and favour plant growth.
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संबंधित प्रश्न
The water holding capacity is the highest in ___________.
Match the items in Column I with those in Column II:
| Column I | Column II |
| A home for living organisms | Large particles |
| Upper layer of the soil | All kinds of soil |
| Sandy soil | Dark in colour |
| Middle layer of the soil | Small particles and packed tight |
| Clayey soil | Lesser amount of humus |
State the characteristic of each of the soils named below that makes them most suitable for crop cultivation:
Black Soil
With reference to Red Soils in India, answer the following questions:
State two advantages of this type of soil.
Give a geographical reason for the following:
Dry farming is preferred in areas with red soil.
Which two types of Soils are the most important Soils?
Why Black Soils are also called ‘Black Cotton Soil’?
Alluvial soils found in the lower courses and the upper courses of rivers.
Alluvial soil of the northern plains and the alluvial soil on the coastal plains of India.
‘Regur Soil’ is another name for the ______
