Explain the role of the following in increasing the soil fertility and crop yield :
(i) Leguminous plants
(ii) Cyanobacteria
(iii) Mycorrhizae
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Please find below the solution to the asked query
i. Leguminous plants have bacteria known as Rhizobium. It lives symbiotically in the root region of the leguminous plants, by infecting their roots and forming nodules on them. These nodules are the site for nitrogen fixation. Nodules contain enzymes which convert nitrogen into a usable form. This nitrogen is then utilized by plants to synthesize proteins and other such compounds. These bacteria also help in decomposition of organic wastes and in doing that provide the nutrients to the soil which are then taken up by the plants, thereby increasing the fertility of soil and crop yield.
Please find below the solution to the asked query
i. Leguminous plants have bacteria known as Rhizobium. It lives symbiotically in the root region of the leguminous plants, by infecting their roots and forming nodules on them. These nodules are the site for nitrogen fixation. Nodules contain enzymes which convert nitrogen into a usable form. This nitrogen is then utilized by plants to synthesize proteins and other such compounds. These bacteria also help in decomposition of organic wastes and in doing that provide the nutrients to the soil which are then taken up by the plants, thereby increasing the fertility of soil and crop yield.
ii. Blue green algae(Cyanobacteria) act as biofertilizer. Biofertilizers are introduced in the soil. They helps in replenishing the nutrients in the soil which are then taken in by the plants .They have the ability to fix the atmospheric nitrogen.
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