Question

Role of symbiotic and asymbiotic nitrogen fixing bacteria in soil enrichment

Answer 1

The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development. To ensure sufficient nodule formation and optimum growth of legumes (e.g., alfalfa, beans, clovers, peas, soybeans), seeds are usually inoculated with commercial cultures of appropriate Rhizobium species, especially in soils poor or lacking in the required bacterium.

Answer 2

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Role of symbiotic and asymbiotiv nitrogen fixing bacteria in soil enrichment.

➡ These nitrogen fixing bacteria helps to convert the atmoshperic nitrogen into nitrate

or nitrite in which helps the soil in its fertility.

These Nitrogen fixing bacteria are present in leguminous plants.

Such as - Peas and

soyabean.

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