Crop rotation is helpful because

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(A) If the same crop is grown year after year,the fertility of the soil is lost due to the repeated utilization of the same minerals,which disturbs th

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It gives more nitrates in the soil

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(A) If the same crop is grown year after year,the fertility of the soil is lost due to the repeated utilization of the same minerals,which disturbs the soil structure and facilitates soil erosion.Leguminous plants are particularly useful in crop rotation because they possess root nodules containing nitrogen-fixing bacteria.These bacteria convert atmospheric nitrogen into nitrates,thereby enriching the soil with nitrates and restoring its fertility.

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