Farmers have reported over 50% higher yields of rice by using which of the following biofertilizer [MP PMT 1997; CBSE PMT 1993, 98, 99]
A) Mycorrhiza
B) Azolla pinnata
C) Cyanobacteria
D) Legume-Rhizobium symbiosis
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Farmers have reported over 50% higher yields of rice by using which of the following biofertilizer Legume-Rhizobium symbiosis
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