Farmers have reported over 50% higher yields of rice by using which of – McqOptions

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1.	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
Answer» D. Legume-Rhizobium symbiosis

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