Araragi, Michio, Studies on microflora in tropical paddy and upland farm soils / by Michio Araragi, Banharn Tangcham, Wisit Cholitkul and Samnao Phetchawee - 89 pages : Illustrations ; 26 cm - Technical Bulletin of the Tropical Agriculture Research Center ; No. 13 . Includes bibliographical references Subjects--Topical Terms: Soil micro-organismsRiceCrops and soils LC Class. No.: QR111 / S78