General Science | Biology | Biofertilizer
General Science | Biology | Biofertilizer
1. Which of the following is a source of biofertilizer?
Yeast
Chlorella
Azolla
Mold
Correct Answer
Wrong Answer
2. Which of the following is a biofertilizer?
Urea
2,4-D
Streptocycline
Azolla
Correct Answer
Wrong Answer
3. The biofertilizer used as a supple- menatry food for the cattle, especially for milking bovinces is
Azospirillum
Azolla
Azotobacter
Rhizobium
Correct Answer
Wrong Answer
4. Which bacteria is responsible for nitrogen fixation in soyabean?
Rhizobium leguminosarum
Rhizobium japonicum
Rhizobium fajioleai
Rhizobium traitolai
Correct Answer
Wrong Answer
5. 2,4-D is
An insecticide
An explosive
A fungicide
A herbicide
Correct Answer
Wrong Answer
6. Blue-green algae are chiefly used as biofertilizer in the crop of
Wheat
Gram
Paddy
Mustard
Correct Answer
Wrong Answer
7. Blue-green algae is used to supply nitrogen to
Bajra
Maize
Paddy
Wheat
Correct Answer
Wrong Answer
8. Azolla gives a good biofertilizer when mixed with
Blue-green algae
Bone meal
Cow dung
Urea
Correct Answer
Wrong Answer
9. Azolla is often used as biofertilizer because it is associated with
Blue-green algae
Red algae
Fungus
Moss
Correct Answer
Wrong Answer
10. Azolla is
Aquatic Fern
Aquatic algae
Aquatic bacteria
None of the above
Correct Answer
Wrong Answer
11. Aquatic Fern, which is used as a biofertilizer is
Salvinia
Azolla
Marsilia
Pteridium
Correct Answer
Wrong Answer
12. Which of the following micro-organisms are used as biofertilizer?
Cyanobacteria
Protozoa
Virus
None of the above
Correct Answer
Wrong Answer
13. The capability of nitrogen use efficiency can be increased in crop production by
Use of split application
Use of nitrogen inhibitors
Using the slow release of nitrogen fertilizer
All of the above
