Assessment of nitrogen dynamics and cropping system sustainability in the Andean region of South America with a new tool available for computers and smartphones

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dc.contributor.authorDelgado, Jorge A.en
dc.contributor.authorAlwang, Jeffrey R.en
dc.contributor.authorEscudero, Luis O.en
dc.contributor.authorSaavedra, Ana Karinaen
dc.contributor.authorMonar, Carlosen
dc.contributor.authorBarrera, Victor H.en
dc.contributor.authorBotello, Rubén C.en
dc.contributor.departmentAgricultural and Applied Economicsen
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialThe Andesen
dc.coverage.spatialEcuadoren
dc.coverage.spatialBoliviaen
dc.date.accessioned2016-04-19T20:30:50Zen
dc.date.available2016-04-19T20:30:50Zen
dc.date.issued2013en
dc.description.abstractImplementation of best soil and water conservation practices will be key to addressing challenges we will confront in the 21st century. With challenges such as climate change and continued population growth, there is a need for tools that can help us quickly assess how to maintain sustainability of cropping systems, which will be essential for maximizing agricultural production, especially in fragile soils of the Andean region of South America. Nitrogen (N) inputs are key for agricultural production, but because N is so mobile, high efficiency in the management and use of N input is necessary to reduce risk of N losses to the environment while maximizing production. One of the key crops in this region is the potato (Solanum tuberosum L.) crop. This crop leaves a small amount of crop residue after harvest, which increases the potential for a high rate of erosion, especially in the steep soils where the crop is cultivated in this region. A new Nitrogen Index with a Sustainability Index has been calibrated and validated for this region. The tool is available in the English and Spanish languages and can be run in metric or English units. It can be run on desktop and laptop computers (using the software written in the programming language Java™), or on a smartphone that has the Android™ system (via the “app”). The tool is very user friendly and can be used by conservationists, field agronomists, technical personnel, and others. It was found that the tool can accurately assess nitrogen dynamics and evaluate the crop uptake for crops grown in this region, such as corn (Zea mays L.) and potato (Pen
dc.description.notesLTRA-7 (Pathways to CAPS in the Andes)en
dc.format.mimetypeapplication/pdfen
dc.identifier7949en
dc.identifier.citationPresented at the International Soil Conservation Organization 17th Annual Meeting, Medellín, Colombia, 8-12 July 2013en
dc.identifier.other7949_Delgado_et_al_ISCO_2013_South_America_Ju.pdfen
dc.identifier.urihttp://hdl.handle.net/10919/70259en
dc.language.isoenen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectNitrogen indexen
dc.subjectSANREMen
dc.subjectAndesen
dc.subjectIcten
dc.subjectGovernanceen
dc.titleAssessment of nitrogen dynamics and cropping system sustainability in the Andean region of South America with a new tool available for computers and smartphonesen
dc.typePosteren
dc.type.dcmitypeTexten

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