FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Surface water
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yellow leaves
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Rushes, buttercups and other weeds
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soil warms quickly
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Detailed explanation-1: -Signs of poor drainage Surface water, ponding and flooding. Yellow leaves on plants caused by a lack of nitrogen and oxygen. Machinery tracks. The soil particles pack together into clods.
Detailed explanation-2: -If your soil is not well-drained, those pore spaces fill up with water, leading to all kinds of plant growth challenges, including disease, fungus growth, and rot.
Detailed explanation-3: -Surface ponding of water is a sure sign of poor drainage. Poor drainage may also be identified by the formation of redoximorphic features in soil due to the reductive dissolution of Fe3+ containing minerals and subsequent loss of soluble Fe2+ which leaves soil with a gray appearance, referred to as gleying.
Detailed explanation-4: -The worst drainage problems typically occur in clay soils that bind together, thereby creating a dense, almost solid surface. These soils are also referred to as adobe, gumbo, caliche, hardpan, or heavy soil. Due to their tendency to be watertight, such clay soils are often used in the making of ceramics.