eng Science and Education Publishing Research in Plant Sciences 2014-02-08 2 1 16 21 10.12691/plant-2-1-4 PLANT2014214 article Karen Silva 1 Jairo Castaño-Zapata jairo.castano_z@ucaldas.edu.co 2 Department of Agronomy, Universidad Nacional de Colombia, Bogotá , Colombia Department of Agricultural Production, Universidad de Caldas, Manizales, Colombia In addition to inquiring about the knowledge of Nuquí producers, the goal of this research was to prove that the fields of healthy rice plants were set in a specific landscape, which is different to the landscape where rice plants managed with fungicides are located; the composition and structure of the landscapes were determined through participant observation, bibliographic resources and photographic records. The study variables were defined in order to perform correspondence and conglomerate/cluster analysis, both univariate and bivariate. There are two clusters, Nuquí and Lerida, and the index number of different species for Nuquí-Chocó was higher compared with that of Lerida-Tolima, which indicates that Nuquí producers usually establish their rice fields among vegetable species such as weeds, shrubbery, and trees and preserved a very particular structure of landscape, allowing them to maintain their crops free of diseases. http://pubs.sciepub.com/plant/2/1/4/plant-2-1-4.pdf biodiversityknowledgecustomslandscapehealthy plants