UASB NEXT GENERATION BIOFERTILIZER UNIT
University of Agricultural sciences, Bangalore
Biofertilizer, also known as microbial fertilizer or organic fertilizer, refers to a substance
containing live microorganisms that enhance soil fertility and plant growth. These
microorganisms, mainly bacteria and fungi form symbiotic or associative relationships with
plants, promoting nutrient availability, suppressing harmful pathogens, and improving soil
structure. Biofertilizers offer several advantages over chemical fertilizers. They are
environmentally friendly, as they reduce the need for synthetic fertilizers and minimize the risk
of soil and water pollution. Additionally, they can enhance soil fertility and promote sustainable
agriculture practices.

Nitrogen is a key component of chlorophyll, the green pigment responsible for photosynthesis.
It's crucial for the plant's growth and development.
Plants absorb nitrogen from the soil in the
form of nitrate (NO 3- ) or ammonium (NH 4+ ).
Nitrogen is involved in various metabolic processes,
such as protein synthesis, enzyme production, and nucleic acid formation.
Microorganism fixes atmospheric nitrogen and make it available to plants.
Thus, reducing the
application chemical nitrogen fertilizers.

Phosphorus is essential for the formation of DNA, RNA, and ATP (adenosine triphosphate).
It
promotes root development, flower and fruit formation, and overall energy transfer in plants.
Phosphorus is typically present in the soil as phosphate ions (PO 4 3- ).
It plays a crucial role in
energy transfer and storage, promoting early plant growth and establishment.
Microorganism solubilize the phosphorous mineral by production of organic acid thereby
making available to plants.

Potassium regulates various physiological processes in plants, including water uptake, enzyme
activation, and photosynthesis.
It enhances the plant's ability to resist diseases and adapt to stress.
Potassium is absorbed by plants as potassium ions (K+).
It helps in the synthesis of proteins and
starches, improves drought tolerance, and plays a role in the opening and closing of stomata.
Microorganism solubilize the potassium minerals by production of organic acid thereby making
available to plants.
