Kumar, Mukesh Accumulation and movement of availabe potassium in sewage treated Delhi soil / Mukesh Kumar - New Delhi : Jawaharlal Nehru University, 1986. M.Phil - SES, JNU, 1986. ISBN: 1 Subjects--Topical Terms: Soils Index Terms--Genre/Form: Dissertation Dewey Class. No.: 631.83 / K9604 Ac