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1by Nantakorn Boonkerd, FAO, Bangkok (Thailand). Regional Office for Asia and the Pacific eng, Expert Consultation of the Asian Network on Bio and Organic Fertilizers eng 18-21 Sep 1990 Bangkok (Thailand), Prasat Kesawapitak, Samrit Chaiwaqnakupt (Department of Agriculture, Bangkok (Thailand). Soil Science Div.)
Published 1991Texto bibliotecaFAO IT