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Question
Give reason for the following.
Farmers prefer to grow beans and peas in nitrogen deficient soils.
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Solution
Beans and peas are leguminous plants as they have Rhizobium, a bacteria in their root nodules. This bacteria can fix atmospheric nitrogen to enrich the soil with nitrogen and increase its fertility.
Farmers grow leguminous plants in between the major crops, a practice called crop rotation to restore the used nutrients of the soil.
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