Question

how does crop rotation retain soil fertility​

Answer 1

Answer:

Changing crops on a regular basis maintain the fertility of the soil because not all of the same nutrients are used continusely in every season. For example, planting legumes, such as soybeans, helps to replenish necessary nitrogen in the soil. Thus, legumes are grown in rotation with other crops.

Explanation:

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Answer 2

Answer:

Crop rotation uses the natural properties of different plants to restore nutrients to the soil and to maintain its fertility. By planting a planned succession of crops, it gives the soil a chance to balance itself again. Crop rotation also enriches the soil by increasing its biomass or organic components.