Question

. How are nutrient replenished in the soil? ​

Answer 1

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Nutrients replenished in the soil naturally by-

1. Decomposition of dead plants and animals.
2. Bacteria like Rhizobium fix atmosphetic nitrogen into its compound form whichnis absorbed by plants.
3. Farmers usually enrich the soil by adding manures and fertilisers.
4. Manures and fertilisers contain one or more of the nutrients that plant needs.

Answer 2

Explanation:

Fertilisers and manures contain plant nutrients such as nitrogen, phosphorous and potassium, etc. So, when fertilisers and manures are added to the soil in the fields, then the soil gets enriched with nutrients like nitrogen, phosphorous and potassium, etc.

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