by Wannisa Pludbuntong(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Soils Science), Naree Phanchindawan(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Soils Science), Sumitra Poovarodom(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Soils Science)
Published in Warasan Witthayasat Kaset (01.09.2005)