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1by Vu Cao Thai, 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), Luong Duc Loan (Centre for Soils and Fertilizer Research, Ho Chi Minh City (Viet Nam))
Published 1991Texto bibliotecaFAO IT -
2by Thai Phien (Ministry of Agriculture, Hanoi (Viet Nam). Research Inst. for Soil Science and Fertilizers), FAO, Rome (Italy). Agriculture Dept. eng, National Workshop on Investigations of Lands with Declining and Stagnating Productivity eng 12-23 Oct 1985 Hanoi (Viet Nam), Luong Duc Loan, Ministry of Agriculture, Hanoi (Viet Nam). National Inst. for Agricultural Planning and Projection eng
Published 1986Texto bibliotecaFAO IT