Question

Name two organism that are commonly used as biofertiliser

Answer 1

Required answer :

• Rhizobium.
• Anabaena.

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➤ Rhizobium :

➠ Rhizobium improves the soil quality and it is responsible for the growth of the plant.

➤ Anabaena :

➠ Anabaena is a cyanobacteria which helps in nitrogen-fixing.

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• BIO FERTILIZER :

➠ The substances which contains microorganisms that increase the growth of the plant and fertility of the soil.

➠ Example : Phosphate Solubilizing Bacteria, Azotobacter and mycorrhiza.

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Answer 2

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❥ Name two organism that are commonly used as biofertiliser .

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The two organism that are commonly used as biofertiliser are :

• Rhizobium★

• Azotobacter★

• Azospirilium★

( Write any two organism from this . I have given here three organism .)

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Biofertilizer-♡

• Biofertilizers are substances that contain microorganisms, which is added to the soil to increases the crop yield and promotes plant growth.

Importance of Biofertilizer .♡

• Biofertilizers improve soil texture of plants.

• They do not allow pathogens to flourish.

• They are eco-friendly.

• Biofertilizers protect the environment from pollutants .

• They destroy many harmful substances present in the soil which is good for the plant because this harmful substances causes plant disease.

Rhizobium-♡

• Rhizobium is a soil bacteria .They form root nodules in leguminous plants and fix the atmospheric nitrogen into an organic form.

Azotobacter-♡

• It plays an important role in fixing the atmospheric nitrogen . It protects the roots from pathogens present in the soil . It provide certain antibiotics and growth substances to the plant.

Azospirillum-♡

• They are found inside the roots of the plant (non-free-living) where they fix the atmospheric nitrogen. This is used in wetland areas.