1.

Farmers in Northern India grow legumes as fodder in one season and wheat in the next season. (a) What is this practice known as ?(b) How does this practice help in the replenishment of soil?

Answer»

(a) Crop rotation 

(b) The nitrogen-fixing bacteria present in root nodules of leguminous plants is rhizobium bacteria. Rotation of crops (leguminous and non-leguminous crops) in the same field replenishes the soil with nitrogen naturally and increases the soil fertility.



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