State 2 reasons for increase in fallow lands
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1. due to heavy use of fertilizers and pesticides the soil looses it's fertility so it is left fallow for some months in order to regain fertility
2. the increase is also due to the reason that the earthworms it bactetuas can enter the sender and useful microbes like blue green algae can fix atmospheric nitrogen
2. the increase is also due to the reason that the earthworms it bactetuas can enter the sender and useful microbes like blue green algae can fix atmospheric nitrogen
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