Q.10. Replenishment of nutrients in soil takes place
O by adding manures
O by adding fertilizers
O nitrogen fixation by rhizobium
Oall of these.
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Answer:
Main nutrients required for plants are
Crop rotation, Composting, Cover crops and Mulching all these techniques replenishes nutrients in the soil
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Explanation:
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manure replenishes humus. nitrogen fixation replenishes nitrogen. and fertilizers replenish minerals and nutrients
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