It is a nitrogen-fixing biological product based on the bacteria Azotobacter chroococcum / Paenibacillus Azotofixans.
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Mode of action :
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Dr. Bactoâs Azo, along with fixing Atmosric nitrogen,it releases growth-promoting Regulators like Acid Gibberellins, Indole Acetic Acid and some antibiotics essential for crop growth. It helps to destroy the Pathogenic microorganisms in the soil. Dr. Bactoâs Azo provides available form of  nitrogen to the crop and prevents excess nitrogen.
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Benefits :
The nitrogen requirement is available naturally during the growth stage of the plant.
It fixes the atmosric nitrogen and makes it available to the crop and helps in improving soil fertility by reducing the use of chemical fertilizers.