Towards sustainable crop production in Andean communities, Ecuador: An assessment of the soils' nutrient status

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dc.contributor.authorZehetner, Franzen
dc.contributor.authorMiller, William P.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialCotacachien
dc.coverage.spatialAndesen
dc.coverage.spatialEcuadoren
dc.date.accessioned2016-04-19T18:09:35Zen
dc.date.available2016-04-19T18:09:35Zen
dc.date.issued2003en
dc.description.abstractThe volcanic ash soils of northern Ecuador have supported agricultural activities for thousands of years; however, at the dawn of a new millennium, in the peasant communities of Cotacachi, where crop yields have been declining over the past decades, the sustainability of agricultural production seems to be threatened. Within the SANREM CRSP, researchers Franz Zehetner and Bill Miller analyzed the fertility status of the soils in the Cotacachi area and identified limiting factors to crop growth in different zones of the area. The researchers used crop growth modeling to examine the long-term effects of nitrogen fertilization and residue management on maize yields, and to identify possible avenues for restoring and maintaining soil fertility as the basis of sustainable agricultural production.en
dc.format.mimetypeapplication/pdfen
dc.identifier110en
dc.identifier.citationSANREM CRSP Research Brief 2003 no. 16en
dc.identifier.other110_FranzBrief1_15Final.pdfen
dc.identifier.urihttp://hdl.handle.net/10919/65709en
dc.language.isoen_USen
dc.publisherWatkinsville, Ga.: SANREM CRSPen
dc.subjectSoil nutrientsen
dc.subjectSoil managementen
dc.subjectSoil fertilityen
dc.subjectModelingen
dc.subjectSustainable agricultureen
dc.subjectSoil organic matteren
dc.subjectFertilizationen
dc.subjectFarming systemsen
dc.subjectCrop yieldsen
dc.subjectPotassiumen
dc.subjectPhosphorusen
dc.subjectNitrogenen
dc.subjectVolcanic ash soilen
dc.subjectCotacachien
dc.subjectAndesen
dc.subjectEcuadoren
dc.subjectCrop growth simulationen
dc.subjectSoil analysisen
dc.subjectDecision support system for agrotechnology transfer (dssat)en
dc.subjectCentro andino de acción popular (caap)en
dc.subjectField Scaleen
dc.titleTowards sustainable crop production in Andean communities, Ecuador: An assessment of the soils' nutrient statusen
dc.typeTechnical reporten
dc.type.dcmitypeTexten

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