Impacts of nitrogen fertilization and planting date on the physiology and yield of purple sweet potato at the extreme Northern edge of cultivation

Ivar Zekker; Astrid Kännaste; Viacheslav Eremeev; Kaia Kask; Pille Meinson; Helina Nassar; Erkki Mäeorg; Eve Runno-Paurson; Ülo Niinemets

doi:10.1371/journal.pone.0318531

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Open Access

Peer-reviewed

Research Article

Impacts of nitrogen fertilization and planting date on the physiology and yield of purple sweet potato at the extreme Northern edge of cultivation

Ivar Zekker,

Roles Writing – original draft

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
⨯
Astrid Kännaste ,

Roles Investigation, Writing – original draft

* E-mail: astrid.kannaste@emu.ee

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia

https://orcid.org/0000-0002-9753-7677

⨯
Viacheslav Eremeev,

Roles Investigation

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
⨯
Kaia Kask,

Roles Data curation

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
⨯
Pille Meinson,

Roles Methodology

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
⨯
Helina Nassar,

Roles Methodology

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
⨯
Erkki Mäeorg,

Roles Writing – review & editing

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
⨯
Eve Runno-Paurson,

Roles Conceptualization, Methodology, Project administration

Affiliation Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
⨯
Ülo Niinemets

Roles Project administration, Writing – review & editing

Affiliations Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia, Estonian Academy of Sciences, Tallinn, Estonia
⨯

Impacts of nitrogen fertilization and planting date on the physiology and yield of purple sweet potato at the extreme Northern edge of cultivation

Ivar Zekker,
Astrid Kännaste,
Viacheslav Eremeev,
Kaia Kask,
Pille Meinson,
Helina Nassar,
Erkki Mäeorg,
Eve Runno-Paurson,
Ülo Niinemets

Published: March 26, 2025
https://doi.org/10.1371/journal.pone.0318531

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