FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sandy soil does not hold enough water.
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Air cannot pass through sandy soil.
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Roots cannot easily push through sandy soil.
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Sandy soil has too many nutrients.
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Detailed explanation-1: -The water retaining capacity of sandy soil is very poor and water quickly percolates down the soil, due to which crop plants are unable to absorb adequate amounts of water.
Detailed explanation-2: -Sand: Sandy soils drain very fast and do not hold water very well. They have the largest particle size and feels gritty to touch. Sand particles do not bind very well and easily warms up in the Spring because they have more pore spaces that fill with air.
Detailed explanation-3: -Sandy soils are less fertile than other soil types, and more prone to drying out, because they’re made up of relatively large particles. This means there are cavernous gaps between the particles, making it easy for water (and water-soluble nutrients) to filter down through the soil, out of the reach of plant roots.
Detailed explanation-4: -Sandy soil does not have good water holding capacity as water drains quickly through the spaces between the sand particles. Unlike sandy soil, water can be held in the tiny gaps between the particles of clay. So, clayey soil is uses for paddy cultivation.
Detailed explanation-5: -Water drains quickly through sandy soil. So, sandy soil is called well aerated, light and dry. Sandy soil is not fit for vegetation as it does not retain water.