EMERGING TECHNOLOGIES IN FOOD SCIENCE
BIOTECHNOLOGY
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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: -Complete answer: The soil’s ability to retain water is strongly related to particle size. Water molecules hold more tightly to the fine particles of a clay soil than to coarser particles of sandy soil, so clays generally hold more water. Sands provide easier passage or transmission of water through the profile.
Detailed explanation-5: -Sandy soil loses water at a high rate leading to a low level of water retention that is unsuitable for plant growth. Clay soil holds too much water leading to water logging.