Efficient use of nutrients in fine aroma cacao in the province of Los Ríos-Ecuador

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dc.creatorEdisson W. Cuenca-Cuenca
dc.creatorYina J. Puentes-Páramo
dc.creatorJuan C. Menjivar-Flores
dc.date2019
dc.date.accessioned2026-07-07T03:30:33Z
dc.descriptionSoil nutrients are vital to high production of cacao (Theobroma cacao L.); however, excessive use of fertilizers affects the environment and profitability of this crop. This research aimed to determine the efficient use of nutrients (EUN) for nitrogen (N), phosphorus (P) and potassium (K) in four fine aroma cacao clones (EET-576, EET-575, EET-103, and CCN-51), which are economically important in Ecuador. The experiment design used split plots, with four treatments and four repetitions. The treatments consisted of applications of different doses of N-P-K (kg ha-1): TR (control), T1 (N59-P29-K118), T2 (N74-P37-K148), and T3 (N88-P44-K176). The results showed highly significant differences for the agronomic (AE) and recovery (RE) efficiency of N-P-K in terms of the clone and treatment. The highest efficiencies were presented for clone CCN-51 and the lowest in clone EET-103. The treatment that obtained the highest efficiency was T2 for clones CCN-51, EET-575 and EET-576, except for EET-103 that reached the highest efficiency with T1. The lowest efficiencies were obtained in T3. The highest yields were presented in clone CCN-51, followed by EET-575, later EET-576, and finally EET-103. Influence of the genotypes on the maximum limit of nutrient absorption was evident under the studied conditions, suggesting that it determines the efficient use of nutrients for each clone in interaction with this specific cultivation area.
dc.formatapplication/pdf
dc.identifier0304-2847
dc.identifierhttps://www.redalyc.org/articulo.oa?id=179961330009
dc.identifierhttps://www.redalyc.org/journal/1799/179961330009/
dc.identifierhttps://www.redalyc.org/journal/1799/179961330009/html/
dc.identifierhttps://www.redalyc.org/journal/1799/179961330009/179961330009.epub
dc.identifierhttps://www.redalyc.org/journal/1799/179961330009/movil
dc.identifier10.15446/rfnam.v72n3.74862
dc.identifier.urihttp://hdl.handle.net/123456789/435842
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1799
dc.rightsRevista Facultad Nacional de Agronomía - Medellín
dc.sourceRevista Facultad Nacional de Agronomía - Medellín (Colombia) Num.3 Vol.72
dc.subjectAgrociencias
dc.titleEfficient use of nutrients in fine aroma cacao in the province of Los Ríos-Ecuador
dc.typeartículo científico

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Revista Facultad Nacional de Agronomía - Universidad Nacional de Colombia