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8.Microbes in Human Welfare
medium
Farmers have reported over $50\%$ higher yields of rice by using which of the following biofertilizer
A
Mycorrhiza
B
Azolla pinnata
C
Cyanobacteria
D
Legume-Rhizobium symbiosis
(AIPMT-1993) (AIPMT-1998) (AIPMT-1999)
Solution
It's Obvious
Standard 12
Biology