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5Effects of production systems with maize (Zea mays L.) on soil fertility and biological diversity in the Soconusco, Chiapas, Mexico Effects of production systems with maize (Zea mays L.) on soil fertility and biological diversity in the Soconusco, Chiapas, Mexicoby Marroquín Agréda, Francisco Javier Doctor 20675, Pohlan, Jurgen Doctor autor/a 5441, Janssens, Marc J. J. Doctor autor/a 21219, Borgman, Jörg autor/aTexto bibliotecaECOSUR