microbes are bio-fertilizers. explain
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Microbes are bio fertilizers ..it means that microbes work as fertilizers without harming the plant body or soil..they naturally increase the fertility of soil n therefore can be said bio fertilizers
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HEY BUDDY HERE IS YOUR ANSWER
MICROBES AS BIOFERTILIZERS
Biofertilizers are organisms that enrich the nutrient quality of the soil.
The main sources of biofertilizers are bacteria, fungi and cyanobacteria.
Some microbes used as biofertlizers are-
Rhizobium form root nodules in leguminous plants and fix atmospheric nitrogen into organic forms, which is used by the plant as nutrient.
Free living bacteria like Azospirilium and Azotobacter fix atmospheric nitrogen, hence increases nitrogen content of the soil.
Many members of the genus Glomus form Mycorrhiza, which is the symbiotic association of fungi with roots of the plants.
The fungal symbiont in these associations absorbs phosphorus from soil and passes to the plants.
Plants having symbiotic association show resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development.

Fig. Mycorrhiza
Cyanobacteria are autotrophic microbes which can fix atmospheric nitrogen. Example - Anabaena, Nostoc, Oscillatoria
Blue green algae also add organic matter to the soil and increase its fertility.
MICROBES AS BIOFERTILIZERS
Biofertilizers are organisms that enrich the nutrient quality of the soil.
The main sources of biofertilizers are bacteria, fungi and cyanobacteria.
Some microbes used as biofertlizers are-
Rhizobium form root nodules in leguminous plants and fix atmospheric nitrogen into organic forms, which is used by the plant as nutrient.
Free living bacteria like Azospirilium and Azotobacter fix atmospheric nitrogen, hence increases nitrogen content of the soil.
Many members of the genus Glomus form Mycorrhiza, which is the symbiotic association of fungi with roots of the plants.
The fungal symbiont in these associations absorbs phosphorus from soil and passes to the plants.
Plants having symbiotic association show resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development.

Fig. Mycorrhiza
Cyanobacteria are autotrophic microbes which can fix atmospheric nitrogen. Example - Anabaena, Nostoc, Oscillatoria
Blue green algae also add organic matter to the soil and increase its fertility.
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