Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop

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Nitrogen fertilization has positive effects on growth and production of potato crop. The objective of this study was to assess the differences of the photosynthetic response and biomass partitioning patterns during the main phenophases of the potato cultivar Capiro under different nitrogen nutrition...

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Detalles Bibliográficos
Autores: Salas-Rosales, José E., Manuel Villa, Pedro, Rodrigues, Alice C., Rada, Fermín
Formato: artículo
Fecha de Publicación:2020
Institución:Universidad Nacional Agraria La Molina
Repositorio:Revistas - Universidad Nacional Agraria La Molina
Lenguaje:inglés
OAI Identifier:oai:revistas.lamolina.edu.pe:article/1571
Enlace del recurso:https://revistas.lamolina.edu.pe/index.php/jpagronomy/article/view/1571
Nivel de acceso:acceso abierto
Materia:Dry weight accumulation
nitrogen supply
Solanum tuberosum
tuber yield
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spelling Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato cropSalas-Rosales, José E.Manuel Villa, PedroRodrigues, Alice C.Rada, FermínDry weight accumulationnitrogen supplySolanum tuberosumtuber yieldNitrogen fertilization has positive effects on growth and production of potato crop. The objective of this study was to assess the differences of the photosynthetic response and biomass partitioning patterns during the main phenophases of the potato cultivar Capiro under different nitrogen nutrition fertilization treatments in the tropical Andes of Mérida, Venezuela. Plots of 40 m2 (2,625 plants m-2) were established under a random block design with three replications by nitrogen fertilization treatment: 0, 100, 200, and 300 kg. N ha-1. Photosynthesis and biomass were measured in the different organs in the main phenological stages of the crop. The results indicate that photosynthesis tends to increase slightly with the nitrogen supply; although the differences were not always significant and, decreases during crop growth. Tubers yield it was markedly influenced by the nitrogen fertilization. The total biomass production, as well as biomass allocation in different organs showed differences between treatments, maintaining the following order: 300-N> 200-N> 100-N> 0-N. When analyzing the biomass accumulation curves, it is estimated that the application of 250 kg N ha-1 as mineral fertilizer is enough to reach optimal production yields.Universidad Nacional Agraria La Molina2020-08-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.lamolina.edu.pe/index.php/jpagronomy/article/view/157110.21704/pja.v4i2.1571Peruvian Journal of Agronomy; Vol. 4 No. 2 (2020): May to August; 68-74Peruvian Journal of Agronomy; Vol. 4 Núm. 2 (2020): May to August; 68-742616-4477reponame:Revistas - Universidad Nacional Agraria La Molinainstname:Universidad Nacional Agraria La Molinainstacron:UNALMenghttps://revistas.lamolina.edu.pe/index.php/jpagronomy/article/view/1571/pdf_44Derechos de autor 2020 José E. Salas-Rosales, Pedro Manuel Villa, Alice C. Rodrigues, Fermín Radainfo:eu-repo/semantics/openAccessoai:revistas.lamolina.edu.pe:article/15712025-05-05T19:34:14Z
dc.title.none.fl_str_mv Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
title Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
spellingShingle Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
Salas-Rosales, José E.
Dry weight accumulation
nitrogen supply
Solanum tuberosum
tuber yield
title_short Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
title_full Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
title_fullStr Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
title_full_unstemmed Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
title_sort Effects of nitrogen fertilization on the photosynthesis and biomass distribution in a potato crop
dc.creator.none.fl_str_mv Salas-Rosales, José E.
Manuel Villa, Pedro
Rodrigues, Alice C.
Rada, Fermín
author Salas-Rosales, José E.
author_facet Salas-Rosales, José E.
Manuel Villa, Pedro
Rodrigues, Alice C.
Rada, Fermín
author_role author
author2 Manuel Villa, Pedro
Rodrigues, Alice C.
Rada, Fermín
author2_role author
author
author
dc.subject.none.fl_str_mv Dry weight accumulation
nitrogen supply
Solanum tuberosum
tuber yield
topic Dry weight accumulation
nitrogen supply
Solanum tuberosum
tuber yield
description Nitrogen fertilization has positive effects on growth and production of potato crop. The objective of this study was to assess the differences of the photosynthetic response and biomass partitioning patterns during the main phenophases of the potato cultivar Capiro under different nitrogen nutrition fertilization treatments in the tropical Andes of Mérida, Venezuela. Plots of 40 m2 (2,625 plants m-2) were established under a random block design with three replications by nitrogen fertilization treatment: 0, 100, 200, and 300 kg. N ha-1. Photosynthesis and biomass were measured in the different organs in the main phenological stages of the crop. The results indicate that photosynthesis tends to increase slightly with the nitrogen supply; although the differences were not always significant and, decreases during crop growth. Tubers yield it was markedly influenced by the nitrogen fertilization. The total biomass production, as well as biomass allocation in different organs showed differences between treatments, maintaining the following order: 300-N> 200-N> 100-N> 0-N. When analyzing the biomass accumulation curves, it is estimated that the application of 250 kg N ha-1 as mineral fertilizer is enough to reach optimal production yields.
publishDate 2020
dc.date.none.fl_str_mv 2020-08-30
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistas.lamolina.edu.pe/index.php/jpagronomy/article/view/1571
10.21704/pja.v4i2.1571
url https://revistas.lamolina.edu.pe/index.php/jpagronomy/article/view/1571
identifier_str_mv 10.21704/pja.v4i2.1571
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.lamolina.edu.pe/index.php/jpagronomy/article/view/1571/pdf_44
dc.rights.none.fl_str_mv Derechos de autor 2020 José E. Salas-Rosales, Pedro Manuel Villa, Alice C. Rodrigues, Fermín Rada
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2020 José E. Salas-Rosales, Pedro Manuel Villa, Alice C. Rodrigues, Fermín Rada
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional Agraria La Molina
publisher.none.fl_str_mv Universidad Nacional Agraria La Molina
dc.source.none.fl_str_mv Peruvian Journal of Agronomy; Vol. 4 No. 2 (2020): May to August; 68-74
Peruvian Journal of Agronomy; Vol. 4 Núm. 2 (2020): May to August; 68-74
2616-4477
reponame:Revistas - Universidad Nacional Agraria La Molina
instname:Universidad Nacional Agraria La Molina
instacron:UNALM
instname_str Universidad Nacional Agraria La Molina
instacron_str UNALM
institution UNALM
reponame_str Revistas - Universidad Nacional Agraria La Molina
collection Revistas - Universidad Nacional Agraria La Molina
repository.name.fl_str_mv
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