00342    a2200097   4500082001800000100003500018245007300053260004800126650004400174700002600218  a631.4bANE/AC  aAneesa Beegam M.M (Researcher)  aAccumulation heavy metals in typic sulfaquents of kuttanad ecosystem  aVellanikkarabCollege of Horticulturec2016  asoil science and agricultural chemistry  aDr. Beena V I (Guide)