Sobre mí
PhD in Microbiology, University of Edinburgh. Worked at the Instituto Nacional de Pesquisas da Amazonia (INPA) in Manaus Brazil from 1976 to 1980, at CIAT as head soil microbiologist in the Tropical Pastures Program from 1980 to 1989, and as a seed and appropriate technology specialist in Costa Rica from 1990 till present
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