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Biofertilizers provide "eco-friendly" organic agro-inputs. Rhizobium, Azotobacter, Azospirillum and blue-green algae (BGA) are perhaps the species with the longest history of use as biofertilizers. Rhizobium inoculant is used for leguminous crops. Azotobacter can be used with crops like wheat, maize, mustard, cotton, potato, and other vegetable ...
Rhizobium forms a symbiotic relationship with certain plants, such as legumes, fixing nitrogen from the air into ammonia, which acts as a natural fertilizer for the plants. The Agricultural Research Service is conducting research involving the genetic mapping of various rhizobial species with their respective symbiotic plant species, like ...
Diazotroph biofertilizers used today include Rhizobium, Azotobacter, Azospirilium and Blue green algae (a genus of cyanobacteria). These fertilizer are widely used and commenced into industrial production. So far in the market, nitrogen fixation biofertilizer can be divided into liquid fertilizer and solid fertilizer.
The most commonly applied rhizobacteria are Rhizobium and closely related genera. Rhizobium are nitrogen-fixing bacteria that form symbiotic associations within nodules on the roots of legumes. This increases host nitrogen nutrition and is important to the cultivation of soybeans, chickpeas and many other leguminous crops.
They are an important group of microorganisms used in biofertilizer. Biofertilization accounts for about 65% of the nitrogen supply to crops worldwide. [citation needed] PGPRs have different relationships with different species of host plants. The two major classes of relationships are rhizospheric and endophytic.
An important nitrogen fixing symbiosis is that between Rhizobium and leguminous plants. [4] Rhizobium have been shown to contribute upwards of 300 kg N/ha/year in different leguminous plants, and their application to agricultural crops has been shown to increase crop height, seed germination, and nitrogen content within the plant. [5]
Rhizobium is a genus of soil bacteria used as biofertilizers, [20] Bacillus thuringiensis (also called Bt) and the annonins (obtained from seeds of the plant Annona squamosa) are examples of biopesticides, [21] [22] [19] [23] and valnemulin and tiamulin (discovered and developed from the basidiomycete fungi Omphalina mutila and Clitopilus ...
[citation needed] Some of the bacteria she described are used as inoculants or biofertilizers in agriculture. A species of Rhizobium was proposed by colleagues in the field under its name, Rhizobium esperanzae. She has given a good number of interviews on radio and television programs. [citation needed]
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