Mariappan, Y.E.N.Natrajan, S.Ramu, S.Giriprakash, P.2014-11-122014-11-121996Tropical Agricultural Research, 8:p.104-113https://dl.nsf.gov.lk/handle/1/12368Soil ScienceGypsiferous black soilSoil analysisGypsum miningGypsum mined soilsSoil propertiesIndiaUnmined soilsCharacterisation and classification of mined and unmined gypsiferous blackA