EASY
Earn 100

Give some examples of biofertilizers.

Important Questions on Crop Production and Management

EASY
Mention the role of Methanobacterium in rumen of cattle.
EASY
What is biogas? Name any two main constituents of biogas.
EASY
Explain the biogas plant with a neat labelled diagram.
HARD
Explain in brief the biogas production process with the help of a labelled figure.
MEDIUM
How do biofertilizers increase the fertility of soil?
EASY

Give a reason for each of the following:

Cyanobacteria increase the productivity in paddy fields.

MEDIUM
Do you think microbes can also be used as a source of energy? If yes, how?
MEDIUM
Why do farmers prefer biofertilizers to chemical fertilizers these days? Give two points. 
EASY

Assertion (A): Organisms of Monera having pseudomurein in cell walls are producers of biogas

Reason (R): Archaebacteria present in the gut of ruminants animals produce methane

HARD
What is biogas? What are the advantages of biogas?
HARD
Microbe which help in the production of Biogas is
EASY
Give an example for a fungus found in mycorrhiza.
EASY
 What is chemical composition of biogas ?
MEDIUM
Differentiate between chemical fertilizers and biofertilizers.
MEDIUM
Write an account on the role of microbes in biogas production.
MEDIUM

Your advice is sought to improve the nitrogen content of the soil to be used for the cultivation of a non-leguminous terrestrial crop.

Why do leguminous crops not required such enrichment of the soil?

EASY
What gases are produced in anaerobic sludge digesters?