SOILS AND NATURAL VEGETATION
SOILS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which layer of soil is most important for plant growth?
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topsoil
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subsoil
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bedrock
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none of above
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Explanation:
Detailed explanation-1: -We plant seeds for plants to grow in the topsoil. It is the topmost layer of soil. Plants get minerals and organic matter or humus required for their growth from this layer.
Detailed explanation-2: -There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients. It also plays host to significant bacterial, fungal and entomological activity without which soil quality would degrade and become less suitable for plants.
Detailed explanation-3: -A Horizon is the top layer of soil also called Topsoil. This layer is rich in various microorganisms, minerals and humus. It is the most fertile layer of soil.
There is 1 question to complete.