Question

Loamy soil contains which of the following components?
1) Clay soil
2) Alluvial soil
3) Red soil
4) Sandy soil
5) Silt soil

A) I and II
B) I, IV and V
C) II and V
D) II, III and V

Answer 1

Hint:
Loamy soils usually have more nutrients, moisture, and humus as compared with sandy soils. It has much better drainage and infiltration of water and air when compared with silt and clay-rich soils, and are easier to till than clay soils.

Complete solution:
Changes in mineral proportions result in different types of loam soils. Like sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam. As suggested by the United States Department of Agriculture textural classification triangle, loamy soil is the only soil that is not predominantly sand, silt, or clay.
Loamy soil's texture, especially its ability to retain nutrients and water, is crucial. Most of the plant varieties grow well in a loamy soil.

Farming use
Loamy soil retains water and nutrients, while still allowing excess water to drain away. Thus it is considered ideal for gardening and agricultural uses. Loam soil is soft and crumbly and hence is easy to work over a wide range of moisture conditions.
Loamy soil is contains mainly sand (particle size > 63 micrometres (0.0025 in)), silt (particle size > 2 micrometres (7.9×10−5 in)), and a smaller amount of clay (particle size < 2 micrometres (7.9×10−5 in)). It’s mineral percentage composition is about 40–40–20% concentration of sand–silt–clay, respectively.

Hence, the correct answer is option B.

Note:
The colour range for the fine sandy loam is from light greyish-brown to black, while with the loam it was from dark-greyish-brown to black. The fine sandy loam present in the subsoil ranges from light yellow to dark-brown while with the: loam the range is from light yellow to brown.