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Azolla is used as a biofertilizer because it

Has association of nitrogen fixing Cyanobacteria
Has association of nitrogen fixing Rhizobium
Multiplies very fast to produce massive biomass
Has association of mycorrhiza
Additional Questions

Green manure plants used by farmer mainly belong to

Answer

Rotenone is

Answer

Which of the followings is mainly produced by the activity of anaerobic bacteria on sewage?

Answer

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?

Answer

Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition?

Answer

The biological control of agricultural pests, unlike chemical control is

Answer

Which one of the following is used as biological insecticide?

Answer

Yeast is used in the production of

Answer

Which of the following microbes is used for commercial production of ethanol?

Answer

Crop rotation is used by farmers to increase

Answer
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