Bagyaraj, D.J.Suvarna, C.V.2021-09-132021-09-131999Agrieast, 1:p.16-21https://dl.nsf.gov.lk/handle/1/25303AgricultureBiofertilizersMicroorganismsPlant nutrientsSoil bacteriaInoculationNitrogen fixationBiofertilizers and their applicationArticle