Department of Soil Science, Faculty of Agriculture, University of Bengkulu, WR Supratman St. Kandang Limun, Bengkulu 38371 INDONESIA e-mail : terra.fp@unib.ac.id
Khan, Abbas, Department of Agriculture, Bacha Khan University, Charsadda-Pakistan Khan, Rahmdad, Department of Agriculture, Bacha Khan University, Charsadda