Microbes as a biofertilizes
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Microbes as bio-fertilizers
The chemical fertilizers contribute to the pollution. Bio-fertilizers are organisms that enrich the nutrient quality of the soil. Many bacteria, fungi, and cyanobacteria act as biofertilizers. They act as bio-fertilizers by living in symbiotic association with root nodules of leguminous plants such as Rhizobuim. These bacteria fix atmospheric nitrogen and enrich the nitrogen content of soil. Fungi also form symbiotic associations with plants (Mycorrhiza) such as Glomus. They absorb phosphorus and pass it to plants. Cyanobacteria such as Nostoc, Anabaena, etc. also fix atmospheric nitrogen and act as bio-fertilizers especially in paddy fields.
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