Question

Define the term biofertilizers. How does each of the following serve as a biofertilizer?
(a) Ectomycorrhizae (b) Rhizobium (c) Azospirillum

Answer 1

Biofertilizers are the substance that contains organisms, which helps in advancing the development of plants and trees by expanding the flexibility of basic supplements to the plants. It involves living creatures which incorporate mycorrhizal growths, blue green growth, and microscopic organisms. Mycorrhizal growths specially pull back minerals from natural issues for the plant while cyanobacteria are portrayed by the property of nitrogen obsession.

Complete answer:
Biofertilizers are the substance that contains microorganism's living or dormant cells. Biofertilizers increment the supplements of host plants when applied to their seeds, plant surface or soil by colonizing the rhizosphere of the plant. Biofertilizers are more financially savvy when contrasted with compound composts.
Ectomycorrhizas or ectomycorrhizae, abridged EcM) is a type of advantageous relationship that happens between a parasitic symbiont, or mycobiont, and the underlying foundations of different plant species. The mycobiont is regularly from the phylum Basidiomycota and Ascomycota, and all the more once in a while from Zygomycota.
Rhizobium is a class of microbes related with the arrangement of root knobs on plants. These microorganisms live in advantageous interaction with vegetables. They take in nitrogen from the environment and give it to the plant, permitting it to fill in soil low in nitrogen. Latin name. Rhizobium.
Azospirillum is a Gram-negative, microaerophilic, non-fermentative and nitrogen-fixing bacterial sort from the group of Rhodospirillaceae. Azospirillum microorganisms can advance plant growth.The class Azospirillum involves plant-development advancing microscopic organisms (PGPB), which have been extensively examined. The advantages to plants by immunization with Azospirillum have been fundamentally ascribed to its ability to fix barometrical nitrogen, yet additionally to its ability to incorporate phytohormones, specifically indole-3-acidic corrosive.

Note:
Bio-manures are living miniature creatures of bacterial, parasitic and algal causes. Bio-composts fix environmental nitrogen in the dirt and root knobs of vegetable harvests and make it accessible to the plant.
(a) Ectomycorrhizae-They go about as bio-compost as they give supplement, water and minerals to the host.
(b) Rhizobium-They are nitrogen-fixing microbes, they fix barometrical nitrogen as nitrates in the roots.
(c) Azospirillum-It is the free-living nitrogen-fixing microbes, these are gram negative.