Potential yield and efficiency of N and K uptake in tubers of cvs. Capiro and Suprema (Solanum tuberosum Group Andigenum)

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dc.creatorManuel Iván Gómez
dc.creatorStanislav Magnitskiy
dc.creatorLuis Ernesto Rodríguez
dc.date2018
dc.date.accessioned2026-07-07T02:43:57Z
dc.descriptionPotato yield depends on the genotype-environment interaction, edaphic nutrient supply, and fertilization rates. The total tuber yield (FWt), dry weight of tubers (DWt), harvest index (HI) and nutrient use efficiency in tubers (NUEt) were evaluated in the Andean region in Colombia at 75, 100, 125, and 150 d after sowing using two cultivars (Capiro, Suprema), three locations with contrasting soils (Subachoque, Facatativa and Choconta) and two levels of fertilization: F0 (unfertilized) and F1 (fertilized). The Humic Dystrudept soils with fertilization (Choconta) presented late tuber filling with increases of 48 and 64% for the DWt in the cvs. Suprema and Capiro, respectively. In Suprema, the highest production potentials were obtained in fertilized soils with low fertility, with increases of 60.9% for the DWt and 75% for the HI. On the other hand, Capiro was better adapted to soils with medium to high fertility, with increases of up to 86.7% for the FWt, as compared to the unfertilized soils. This increase may be related to higher rates of nutrient recovery efficiency (RFt), higher accumulated nutrients per tuber yield (EPt) and a better NUEt because N. Suprema presented a negative EPt and RFt with HI<45% and the lowest NUE of N and K in high fertility soils, which represents a null response to fertilization and possible mechanisms of luxury consumption for the evaluated elements.
dc.formatapplication/pdf
dc.identifier0120-9965
dc.identifierhttps://www.redalyc.org/articulo.oa?id=180358913004
dc.identifierhttps://www.redalyc.org/journal/1803/180358913004/
dc.identifierhttps://www.redalyc.org/journal/1803/180358913004/html/
dc.identifierhttps://www.redalyc.org/journal/1803/180358913004/180358913004.epub
dc.identifierhttps://www.redalyc.org/journal/1803/180358913004/movil
dc.identifier10.15446/agron.colomb.v36n2.72766
dc.identifier.urihttp://hdl.handle.net/123456789/422147
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1803
dc.rightsAgronomía Colombiana
dc.sourceAgronomía Colombiana (Colombia) Num.2 Vol.36
dc.subjectAgrociencias
dc.titlePotential yield and efficiency of N and K uptake in tubers of cvs. Capiro and Suprema (Solanum tuberosum Group Andigenum)
dc.typeartículo científico

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Agronomía Colombiana - Universidad Nacional de Colombia