Microbes as Biofertilizers
Microbes as Biofertilizers: Overview
This Topic covers sub-topics such as Biofertilizers
Important Questions on Microbes as Biofertilizers
Due to which of the following organisms, the yield of rice has been increased?

A nonphotosynthetic aerobic nitrogen fixing soil bacterium is -

Advantage of using Glomus as a biofertilizer is

The substances containing living microorganisms which help to increase the soil nutrients are called

(Blue-green algae) is chiefly used as biofertilizer in the crop of

Farmers have reported higher yield of rice by using biofertilizer

Aquatic fern which is an excellent biofertilizer is

Which non-symbiotic bacterium fixes free atmospheric nitrogen?

A bacterium found in root nodules of legume plants is

An alga, used as biofertilizer is

Which organisms show a symbiotic relationship with Azolla pinnata?

Biofertilizer for raising soybean crops is

Read the following statements in relation to the use of microbes and select the option with correct statements.
a. The main sources of biofertilizers are bacteria, cyanobacteria, and fungi.
b. Organic farmer works to create a system where pests are kept at manageable levels
c. Trichoderma species are effective biocontrol agents of very few plants pathogens.

Which of these forms a symbiotic association with roots and helps to improve phosphorus uptake?

What is correct with respect to biofertilizers?

Aquatic fern which is an excellent biofertilizer is

(i) Anabaena lives symbiotically with Azolla.
(ii) Azotobacter is a free-living N2 fixer in the soil.
Which of the statements given above is/are correct?

The plasmid of which one of the following has 'Nif' gene in it?

Biofertilizers include

Which of the following is a non-symbiotic biofertilizer?
