Question

Give Reason: Plantation of the same crop in a field over and over should be avoided.
( Answer in Brief)

Answer 1

plantation of a particular crop again and again on the same land should not be done as it makes the soil rich in some specific nutrients as well as it also deprives the soil from some nutrients

Answer 2

hey mate : )

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Because it can damage the soil and if the same crop is grown no nourishment will be there neither in the soil nor in the plant.To regain nourishment crop rotation method should be used plants should be differently not the same plant should be grown or the field should be left bared for few days or months.

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hope it helps ^_^