"Production of Bio – fertilizers" .pptx

Biofertilizers is substances that contain living
microorganisms, which when applied to seed, plant
surface, or soil, colonizes the rhizosphere or interior of the
plant and promotes growth by increasing the supply or
availability of primary nutrients to the host plant.

1. Production of Bio – fertilizer Dr. Nethravathi V Assistant professor Dept of Life Science Mount Carmel College

2. Bio – fertilizer A Bio fertilizer is a substance which contains living microorganisms which, when applied to seeds, plant surfaces, or soil, colonize the rhizosphere or the interior of the plant and promotes growth by increasing the supply or availability of primary nutrients to the host plant. Bio-fertilizers add nutrients through the natural processes of nitrogen fixation, solubilizing phosphorus and stimulating plant growth through the synthesis of growth-promoting substances.

3. Bio-fertilizer is the need of modern agriculture since demand for safe and residue free food is increasing. organic farming reduction of chemical residues in the environment. Improves soil health Reduces production cost Provide employment opportunities

4. Raw materials needed for the production of biofertilizers are as follows: Mother cultures Carrier material - lignite or bentonite or peat of desired quality in powder form (70-100 mesh) Pet bottles of desired quantity, cardboard cartons Growth materials/media - include Manital , sucrose and chemical nutrients.

5. Mother Culture: The pure mother cultures of beneficial microbes maintained in Agricultural Universities, IARI, ICAR institutions. The mother culture of a desired strains an be purchased from the identified sources. They have to be further sub-cultured and maintained for mass production by adopting standard techniques under the supervision of trained microbiologist.

6. Microorganism used as bio-fertilizers Rhizobium Azotobacter Azospirillium Phosphate Solubilising bacteria (PSB) Potash Mobilizing Bacteria (KMB) Trichoderma for compost production.

7. Growth materials The liquid formulation needs water and certain chemicals as Manital , sucrose and chemical nutrients as growth medium. These chemicals are easily available through any supplier/ distributor of lab- chemicals.The chemicals required for the production of bio-fertilizer are: Carbon Source - Malic acid, Sucrose, Glucose, Manitose . Nitrogen Source - Yeast extract, Ammonium sulphate, Peptone. Micro-Nutrients - Mg sulphate, Zn sulphate, Co nitrate. Stabilizers/ Surfactant - Polyethylene Glycol, Glycerol, PVP.

8. Carrier material For solid formulations there is a requirement of lignite / bentonite / charcoal / peat of desired quality in powder form (70-100 mesh). The solid state formulation is sensitive to temperature and during mid-summer. In comparison the liquid formulation is much stable technology and the shelf-life of the product can be maintained very well up to 12 months. The production of liquid Bio fertilizer does not need any carrier material for the final product. For production, it requires only water and chemicals.