https://socictopen.socict.org/files/original/4dfc678fc88c8f54c1785127f94671fa.pdf 661bee40e1358f8f1cdc3a9570d08a76 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Effect of four tillage methods on the physical properties and loss of soil in the potatoâ€“grass rotation in hillside areas of a high Andean region in Colombia Efecto de cuatro métodos de labranza sobre las propiedades físicas y la pérdida de suelo en la rotación papaâ€“pastos en áreas de ladera en una región alto andina de Colombia Creator An entity primarily responsible for making the resource Ramírez Luís, Chaparro Anaya Oscar, Bernal Napoleón, Ipaz Sandro, Montealegre Guillermo Description An account of the resource This study evaluated the loss and the changes in the soil physical properties, and the production of yellow potato Solanum phureja, as a result of four tillage systems (Human traction, THT; Animal traction, ATT; Mechanical, MT; and Mechanical combined, CMT) in Santa Lucia, Tuluá municipality, high andean region of Colombia to 2.870 masl. Treatments were evaluated using a completely randomized blocks desing with three replicates, and the data examined by means of a matrix of change for each physical property. Soil loss was determined by the ditch of runoff. Mechanical traction affected the soil physical properties negatively, that became evident in the increment of losses with the runoff. The bigger loss of soil was correlated with MT use and it diminished to the 50 % with HTT: (MT 6.12 tha–1 year–1; CMT 5.0 tha–1 year–1; ATT 3.7 tha–1 year–1 and HTT 2.73 tha–1 year–1). ATT generated the bigger cost–reducing and environmental retribution, because his production (13 tha–1) was major than the average obtained in the treatments (12.4 tha–1) and the lost one belonging to ground was minor than the generated for MT and CMT.Este estudio avaluó la pérdida y los cambios en las propiedades físicas del suelo y la producción de papa amarilla Solanum phureja, como resultado de cuatro sistemas de labranza (Tracción humana, LTH; Tracción animal, LTA; Mecánica, LM; y Mecánica combinada, LMC) en Santa Lucía, municipio de Tuluá, región alto andina de Colombia a 2.870 msnm. Los tratamientos se evaluaron usando un diseño de bloques completos al azar con tres repeticiones. La pérdida de suelo se determinó por medio de canaletas de escorrentía. La información se analizó por medio de una matriz de cambio para cada propiedad física. La tracción mecánica afectó negativamente las propiedades físicas del suelo, lo que se evidenció en el incremento de pérdidas por escorrentía. La mayor pérdida de suelo se asoció con el uso de LM y disminuyó hasta el 50% con LTH: (LM 6.12 t ha–1 año–1; LMC 5.0 t ha–1 año–1; LTA 3.7 t ha–1 año–1 and LTH 2.73 t ha–1 año–1). LTA generó la mayor retribución económica y ambiental, porque su producción (13 t/ha) fue mayor que el promedio obtenido en los tratamientos (12.4 t/ha) y la pérdida de suelo fue menor que la generada por LM y LMC. Date A point or period of time associated with an event in the lifecycle of the resource 2008 Subject The topic of the resource High Andean region, Hillsides soils, Métodos de labranza, Región Alto Andina, Tillage methods, erosion, grassesâ€“yellowâ€“potato Solanum phureja rotation, rotación papaâ€“pasto, soil loss, soil physical properties, suelos de laderas Source A related resource from which the described resource is derived Acta Agronómica Publisher An entity responsible for making the resource available Universidad Nacional de Colombia Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Agriculture Relation A related resource <a href="http://revistas.unal.edu.co/index.php/acta_agronomica/article/view/1053" target="_blank" rel="noreferrer noopener">http://revistas.unal.edu.co/index.php/acta_agronomica/article/view/1053</a>