The relationships between nitrogen use efficiency and nitrogen input in crop production in Poland

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dc.creatorFaber, Antoni
dc.creatorJarosz, Zuzanna
dc.creatorKopiński, Jerzy
dc.creatorMatyka, Mariusz
dc.date2016-12-30
dc.date.accessioned2023-10-02T11:34:54Z
dc.date.available2023-10-02T11:34:54Z
dc.descriptionThe study attempted to characterize Nitrogen Use Efficiency (NUE), nitrogen yield (Yn), and N balance (Nb = N surplus) depending on the dose of the total N fertilization (F = N dose in mineral fertilizers, natural fertilizers, or N from de- position). The study included basic crops in Poland in the years 1999–2014. The determination of the relationships between Yn, NUE, Nb, depending on F was performed using the elements of the methodology proposed by Lassaletta et al. (2014). The eva- luation of differences between the optimal NUE and the NUE obtained in this study was carried out using the lower limits of the optimal NUE = 70–90%, as proposed tentatively by the EU NEP (2014). The study indicates that in the period of 1999–2014, NUE of basic crops in Poland increased, achieving the weighted average value of 55%. This value was significantly decreased by low NUE of permanent grasslands (42%), which have the largest share (20.3%) in the structure of land use in Poland. It would, therefore, be recommendable to increase NUE on grasslands. The omission of permanent grassland in the analysis increased the we- ighted average NUE for basic crops on arable lands to the value of 60%. There were no differences found in the weighted average NUE values in the case of more intensive (60%) and more exten- sive (60%) crops. Assuming that there is a need to increase NUE to the lower level of the optimal value (70%), we concluded, on the basis of our results and discussion, that the most effective way to achieve it would be to improve the NUE of more inten- sive crops, especially of wheat, triticale and barley. These plants achieve higher grain yields, Yn, Ymax, and Yn gap. They also have a larger share in the crop structure in comparison with more extensive crops.en-US
dc.formatapplication/pdf
dc.identifierhttps://redakcjapja.iung.pl/index.php/pja/article/view/254
dc.identifier.urihttps://bc.iung.pl/handle/123456789/201
dc.languageeng
dc.publisherInstytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławachpl-PL
dc.relationhttps://redakcjapja.iung.pl/index.php/pja/article/view/254/206
dc.rightshttps://creativecommons.org/licenses/by-sa/4.0/deed.enpl-PL
dc.sourcePolish Journal of Agronomy; No. 26: Polish Journal of Agronomyen-US
dc.sourcePolish Journal of Agronomy; Nr 26: Polish Journal of Agronomypl-PL
dc.source2081-2787
dc.source2081-2787
dc.subjectcrops, Nitrogen Use Efficiency (NUE), improvement possibilitiesen-US
dc.titleThe relationships between nitrogen use efficiency and nitrogen input in crop production in Polanden-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
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