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
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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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
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