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 |