A water fern, which is used as a green manure | vedclass

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Azolla is cultivated in rice fields as it provides both green compost and fixed nitrogen to the crop. The use of Azolla in rice fields at the rate of

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Azolla

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Azolla is cultivated in rice fields as it provides both green compost and fixed nitrogen to the crop. The use of Azolla in rice fields at the rate of $200\, gm$ per square metre area can increase rice yield by $12.38 \,\%$. Eexperiments have revealed that application of $10$ tonnes of fresh Azolla biomass in one hectare, adds as much as $100\, kg$ nitrogen.

A water fern, which is used as a green manure in rice fields is

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