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BIOFERTILIZER AND ITS APPLICATIONS

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Green manure plants are

a)

Poaceae

b)

Solanaceae

c)

Leguminosae

d)

Compositae

2.

Azolla is used as a biofertilizer as it possesses

a)

humus in large quantities

b)

rhizobium

c)

mycorrhiza

d)

cyanobacteria

3.

This chemical fertilizer is essential for better rhizobial nitrogen fixation

a)

calcium

b)

potassium

c)

sodium

d)

phosphorus

4.

This is not included in organic farming

a)

crop rotation

b)

chemical fertilizer

c)

green manures

d)

compost and farmyard manures

5.

For paddy, the best fertilizer is

a)

Bacillus polymyxa

b)

Bacillus megaterium

c)

Azolla pinnata

d)

Rhizobium meliloti

6.

Identify

a)

Azolla

b)

Rhizobium

c)

Nostoc

d)

Cyanobacteria

7.

Identify

a)

Blue Green Algae

b)

Azolla

c)

Bacteria

d)

Fungi

8.

Nostoc form

a)

compound colony

b)

simple colony

c)

both (a) and (b)

d)

None of these

9.

Identify

a)

Inoculation needle

b)

scalpel

c)

Inoculation loop

d)

Inoculation blade

10.

Identify the bacteria

a)

Cyanobacteria

b)

Azolla

c)

Nostoc

d)

Rhizobium with root nodule