FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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loam
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humus
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soil
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dirt
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Detailed explanation-1: -The soil that is a mixture of slit, sand, clay and humus is preferred by the farmers because it is good for the growth of plants. This type of soil is called loamy soil.
Detailed explanation-2: -Loam is a mixture of clay, sand and silt and benefits from the qualities of these 3 different textures, favouring water retention, air circulation, drainage and fertility. These soils are fertile, easy to work with and provide good drainage.
Detailed explanation-3: -Clay is a very fine grained soil, and is very cohesive. Sand and gravel are course grained soils, having little cohesiveness and often called granular. Generally speaking, the more clay that is in the soil being excavated, the better the trench walls will hold up. Another factor in soil cohesiveness is water.