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World food production through a sustainable agriculture. conference paper
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica). Atlantic Zone Programme Universidad Agrícola de Wageningen, Wageningen (Países Bajos) Ministerio de Agricultura y Ganadería, San José (Costa Rica), 1992)
In this paper was presented concepts for sustainable land use, based on broad studies realized in Europe. The presentation was prepared to enable comparison with concepts developed in the US and in the South.
Barbechos mejorados en sistemas agroforestales tradicionales de América Central
(CATIE, Turrialba (Costa Rica), 1992)
Barbechos mejorados en sistemas agroforestales tradicionales de América Central
(CATIE, Turrialba (Costa Rica), 1992)