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what are the advantages and disadvantages of biofertilizers?
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Answer Posted / dinesh kumar badal
Advantages:
Decrease the use of costly chemical fertilizers.
It is pollution free.
Supply plant nutrients (N & P)
Secrete plant growth hormones.
Protect from pathogens.
Less costly & simple to use.
It is renewable.
Increases soil fertility.
Non-toxic to non-target organism.
Very specific to target plant.
DISADVANTAGE:
Bio fertilizers require special care for long-term storage because they are alive. They must be used before their expiration date. If other microorganisms contaminate the carrier medium or if growers use the wrong strain, they are not as effective. The soil must contain adequate nutrients for bio fertilizer organisms to thrive and work. Bio fertilizers complement other fertilizers, but they cannot totally replace them. Bio fertilizers lose their effectiveness if the soil is too hot or dry. Excessively acidic or alkaline soils also hamper successful growth of the beneficial microorganisms; moreover, they are less effective if the soil contains an excess of their natural microbiological enemies. Shortages of particular strains of microorganisms or of the best growing medium reduce the availability of some bio fertilizers.
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