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1Geostatistical modeling of the spatial variability of coffee fine roots under Erythrina shade trees and contrasting soil management : Geostatistical modeling of the spatial variability of coffee fine roots under Erythrina shade trees and contrasting soil management :by 95981 Mora, Argenis Universidad de Los Andes, Mérida, Venezuela, 47635 Beer, John (autor/a) Centro Agronómico Tropical de Investigación yEnseñanza, Turrialba, Costa RicaTexto bibliotecaIICA