[ExpertScie]

Bio-fertilizers are being used in large quantity in agricultural. Bio-fertilizers had brought revolution in agriculture field. The word agriculture is more related to natural activity and to nature like plant life cycle, ecosystem, green earth, vegetables, fruits, soil, water & natural environment. Therefore it’s something we do which is a core part of nature wherein artificial things are keeping aside. Therefore nature will grow and help us only if we can align its different components to maintain the balance and bio-fertilizer as also one part or component of nature which when we align in agriculture or nature , really helps mankind in better way than un-natural things like artificial chemical fertilizers and pesticides.
Bio-fertilizers are nothing but a part of nature in the form of microorganisms which colonize the rhizosphere or interior of the plant and help plant to grow by easily supplying nutrients and growth stimulus. Few bacteria have specific genes which make them capable of fixing atmospheric nitrogen. These are Nif Genes. Earth has around 65-70 % of nitrogen but this is of no use to plants unless it is converted to nitrate and this is done by Nif gene containing microorganism and this process is called as nitrogen fixation. Bio-fertilizers are classified as Nitrogen fixers which includes Bacteria like Rhizobium, Azitobacter , Mycobacterium and Blue Green like Anabaena ,Nostac, etc. Further depending upon the fixing capacity they are divided as Phosphate solubilizing fertilizer, Plant growth promoting Rhizobacterim (PGPR), Sulphur solubilizing microbes (Bio-fertilizer) and Azolla. It also means that Nature grows only when there is balance of activities between natural things only like animals, plants, microbes and environment!