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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
उत्तर
A-horizon
Explanation:
A – horizon is topsoil, rich in humus. Humus improves the texture of the 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 ___________.
Give the geographical reason for black soil being suitable for growth of cotton.
Differentiate between transported soil and In-situ soil, quoting a suitable example for each.
name two states of India where this type of soil is found.
Name the Indian soil which is formed due to the weathering of basic igneous rocks.
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 parent rock of Laterite Soil. Name one area in India which has Laterite Soil.
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 |
The alluvial soil consists of ______.
Which one of the following is the most widespread and most productive category of soil?
