BOTANY
AGRONOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Clay soils are more likely to suffer compaction than are sandy soils.
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Sandy soils are quite subject to compaction when dry.
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It is basically impossible to compact a silt loam.
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The amount of water present is far more important than its textural class.
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Detailed explanation-1: -Soil texture impacts compaction as well. Coarse textured soils (sands) are considered less susceptible to compaction than fine textured soils (clays), although a dry clay soil can actually resist compaction better than a dry sand soil.
Detailed explanation-2: -Texture is important because it influences: the amount of water the soil can hold. the rate of water movement through the soil. how workable and fertile the soil is.
Detailed explanation-3: -Compacted soils lack good soil structure as the air spaces that are essential in the movement of water, gases and plant roots are compressed. Some soils have natural compacted layers which limit water entry, cause waterlogging and restrict plant growth.
Detailed explanation-4: -Sandy loams are the most susceptible to compaction because they generally have some structure, which provides macropores in the soil system, but the structure is very weak. The term ‘weak’ means that the cohesive forces holding the particle together can be easily overcome and the particles can move into the macropores.