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Effect of variable rate application of fertizers on the nitrolgen use efficiency

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027049%3A_____%2F23%3AN0000032" target="_blank" >RIV/00027049:_____/23:N0000032 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.5593/sgem2023/3.1/s13.26" target="_blank" >https://doi.org/10.5593/sgem2023/3.1/s13.26</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.5593/sgem2023/3.1/s13.26" target="_blank" >10.5593/sgem2023/3.1/s13.26</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effect of variable rate application of fertizers on the nitrolgen use efficiency

  • Original language description

    The aim of the study was to compare variable rate (VRA) and uniform (UNI) application of mineral nitrogen fertilizers in winter wheat and to evaluate the effect on the achieved yields, nitrogen balance and nitrogen use efficiency (NUE). For these purposes, a field experiment with an area of 16.98 ha of winter wheat was established in 2022 at farm Agra Risuty s.r.o. (Czech Republic, EU). Variable nitrogen topdressing was realized twice during the vegetation period based on yield potential (YP) maps. The evaluation of crop yield maps showed high spatial variability of achieved yield levels within the observed field and their coincidence with the zones of YP. In the case of the UNI variant, the same N rate over all zones led to significant over-fertilization in lessproductive zones in the range of 50 - 70 kg N per ha. This was also reflected by the lower value of NUE for zones with a lower value of YP. The results of the experiment thus point to the importance of the identification of YP zones and the reduction of nitrogen doses in the areas with lower yield productivity to ensure equal nitrogen balance and high NUE. Lukas V., Placatová R., Krček V., Suslikova B., Elbl J. 2023. Effect of variable rate application of fertizers on the nitrolgen use efficiency. Conference Paper in 23rd International Multidisciplinary Scientific GeoConference SGEM 2023; Albena; 3 July 2023 - 9 July 2023; 23(3.1): 217-224. ISBN: 978-619-7603-58-3. ISSN 1314-2704, DOI: 10.5593/sgem2023/3.1/s13.26, https://doi.org/10.5593/ sgem2023/3.1/s13.26

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Result continuities

  • Project

    <a href="/en/project/SS01020309" target="_blank" >SS01020309: Precision farming on agricultural land with conrolled drainage runoff as a tool to protect water and increase crop production efficiency</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023

  • ISBN

    978-619-7603-58-3

  • ISSN

    1314-2704

  • e-ISSN

    1314-2704

  • Number of pages

    8

  • Pages from-to

    217-224

  • Publisher name

    STEF92 Technology

  • Place of publication

    Albena

  • Event location

    Albena

  • Event date

    Jul 3, 2023

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article