Azolla is used as a biofertilizer because it [AIIMS 2003]
A) Multiplies very fast to produce massive biomass
B) Has association of nitrogen-fixing Rhizobium
C) Has association of nitrogenfixing cyanobacteria
D) Has association of mycorrhiza
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C) Has association of nitrogen - fixing Cyanobacteria
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C) Has association of nitrogen - fixing Cyanobacteria
Hope it helps...!!!
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Azolla is used as a biofertilizer because it Has association of nitrogenfixing cyanobacteria
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