Question
Mention two ways by which soil can get nitrogen.

Answer

(i) Use of fertilizer.
(ii) Crop rotation: Rotation ofxrpps is a system in which farmers grow pulses or leguminous crops after the harvest of a soil exhausting crop. Through this method the soil retains its fertility or gets back the nitrogen.

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MonthJanFebMarAprMayJuneJulAugSepOctNovDec
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Rainfall (cm)0.10.10.50.63.826.629.630.526.511.91.10.2
Station B (800 m above sea level)
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Rainfall (cm)0.40.30.31.11.33.27.71.35.80.70.40.3
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