EASY
Earn 100

Give some examples of biofertilizers.

Important Questions on Crop Production and Management

EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
How Bio-fertilizers increase the fertility of soil?
HARD
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Draw a labelled diagram of Anabaena filament showing Akinetes and Heterocyst.
EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
What are cyanobacteria? Write the name of any two cyanobacteria.
MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Identify free-living bacterial biofertilizer.
EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers

Give a reason for each of the following:

Cyanobacteria increase the productivity in paddy fields.

EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Which of the following is a non-symbiotic biofertilizer?
EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Give an example for a fungus found in mycorrhiza.
MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Write two sources of biofertilizers.
EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers

Give the biological names of the following:

A symbiotic nitrogen-fixing bacterium found in root nodules.

MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Give an example of endomycorrhiza.
EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Which of the following is a free living nitrogen fixing bacteria?
MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers

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
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
'Glomus' the genus in fungus does not help the host in
EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Which of the following helps in absorption of phosphorus from soil by plants?
MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers

Choose the correct option for the statements for Mycorrhiza:

(i) It absorbs phosphorus from the soil.

(ii) It forms root nodules with the association of Rhizobium.

(iii) They are resistant to root-borne pathogens and tolerant to salinity and drought.

(iv) They fix atmospheric nitrogen.

MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
How do biofertilizers increase the fertility of soil?
MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Why do farmers prefer biofertilizers to chemical fertilizers these days? Give two points. 
MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Define biofertilisers.
EASY
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
Your advice is sought to improve the nitrogen content of the soil to be used for the cultivation of a non-leguminous terrestrial crop. Recommend two microbes that can enrich the soil with nitrogen.
MEDIUM
Science>Biology>Crop Production and Management>Adding Manure and Fertilisers
In which microorganism Nif gene is found?