CBSE / NCERT Notes for Class 8 Science Microbes as Biofertilizers

Microbes as Biofertilizers – CBSE / NCERT Notes for Class 8 Science

Microbes as Biofertilizers Class 8 Science Online Notes –

Fertilizers are substances added to enhance the soil fertility. This results in higher yields & healthier plants. Chemical fertilizers, however have several disadvantages like they are toxic to various life forms, can cause imbalance in soil ph, results in soil infertility, degrades ecosystem, plants become susceptible to many diseases, fruits & vegetables have high toxic residues. Excessive use of fertilizers can cause environmental pollution.

Use of biofertilizers is preferred as they do not include any of the disadvantages mentioned above. Biofertilizers are living organisms that enrich the soil nutrient quality. Some of the sources of biofertilizers are bacteria, fungi, cyanobacteria etc.

Rhizobium is an example of a nitrogen-fixing bacteria present in the root nodules of leguminous plants. Nitrogen is a macronutrient for the growth & development of plants. Rhizobium enriches the soil with nitrogen.

Learn complete Microbes as Biofertilizers – CBSE / NCERT Notes for Class 8 Science

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