What are the examples of biofertilizers?
What are the examples of biofertilizers?
There are five biofertilizers viz. Rhizobium, Azotobacter, Azospirillum, Phosphate Solubilizing Bacteria and mycorrhiza , which have been incorporated in India’s Fertilizer Control Order (FCO), 1985. Rhizobium, Azotobacter, Azospirillum and blue green algae(BGA) have been traditionally used as Biofertilizers.
Can Rhizobium be used as Biofertilizer?
Rhizobium biofertilizers have been found to increase the yield of leguminous crops by 10-35%. Rhizobium biofertilizers are available in the form of carrier based and liquid formulations. Rhizobium biofertilizers are recommended for pulses, leguminous oilseeds (soybean, groundnut) and leguminous fodder crops.
Which crops are suitable for application of Rhizobium?
List of commonly produced bio-fertilizers in India
| Name | Crops suited |
|---|---|
| Rhizobium strains | Legumes like pulses, groundnut, soybean |
| Azotobacter | Soil treatment for non- legume crops including dry land crops |
| Azospirillum | Non-legumes like maize, barley, oats, sorghum, millet, Sugarcane, rice etc |
What is a Biofertilizer give two examples?
Several microorganisms are commonly used as biofertilizers including nitrogen-fixing soil bacteria (Azotobacter, Rhizobium), nitrogen-fixing cyanobacteria (Anabaena), phosphate-solubilizing bacteria (Pseudomonas sp.), and AM fungi.
How is Rhizobium used as a fertilizer for plants?
Methods: Congo red manitol medium was used in order to find the effect of Rhizobium on growth of sasbenia plant. Bacterial spp. Rhizobia was isolated from nodules of roots of sasbenia plant and streaked on Cong Red Manitol medium, which produced two colors colonies on plates.
What are the different types of biofertilizers?
Biofertilizers are classified into different groups based on their nature. It is a free-living gram-negative bacteria that live in the root nodules of leguminous crops. They show a symbiotic relationship by taking food from the plants and, in turn, providing nitrogen to them.
How is Azospirillum used as a biofertilizer?
The increase in yield by azospirillum is estimated as 5-30%. Various bacteria that promote the growth of plants collectively are known as PGPR. These include bacillus, pseudomonas, Xanthomonas, streptomycin, etc. Bacillus act as a biocontrol agent.
Which is the best definition of bio fertilizer?
Biofertilizers are best defined as biologically active products or microbial inoculants viz., formulations containing one or more beneficial bacteria or fungal strains in easy to use and economical carrier materials which add, conserve and mobilize crop nutrients in the soil. In other words, biofertilizer is
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