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Bio Fertilizer. NPK BIO Fertilizer is a consortia product for NPK Bio-fertilizer i.e. N(Nitrogen) P(Phosphorous) and K(Potash). It contains 5 different types of bacterial culture for Bio N.P.K like Azotobacter, Azospirillum, Rhizobium, PSB and KSB. AND ORGANIC GRANULES with enrich with calcium , magnesium , sulfer and organic carbon. It protects crops from diseases and pests.