A THESIS SUBMITTED TO: THE COUNCIL OF THE COLLEGE OF AGRICULTURE UNIVERSITY of SULAIMANI AS A PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN AGRICULTURE SOIL SCIENCE (SOIL CHEMISTRY) BY GHAFOOR AHMED MAM RASUL B.Sc. AGRICULTURE IN SOIL SCIENCE SULAIMANI UNIVERSITY 1979-1980 SUPERVISOR Dr. AKRAM OTHMAN ESMAIL LECTURER OCTOBER 2000 GALAREZAN 2700K RAJAB 1421 H