Evaluation of crop yield spatial variability in relation to variable rate application of fertilizers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F17%3A43912496" target="_blank" >RIV/62156489:43210/17:43912496 - isvavai.cz</a>

Výsledek na webu

<a href="https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of crop yield spatial variability in relation to variable rate application of fertilizers

Popis výsledku v původním jazyce

The application of nitrogen fertilizers is a challenge both in environmental and economic terms. The solution to the issue of rational nitrogen management is the variable rate application (VRA) of nitrogen fertilizers, which respects site specific soil conditions and the nutrient status of plants. The methodology of the work was based on the collection of data from the Isaria crop sensor system (IRMI, IBI values and N rate), yield maps of winter wheat from the harvesters, Sentinel-2 NDVI image and digital elevation model of the fields. All experimental work was carried out in Zdounky (Kromeriz) during the year 2016. These data were processed and analyzed by using geographic information systems and then statistically evaluated the relationships between variables. There was found a moderate positive relationship between the Sentinel NDVI imagery and the IBI and IRMI indices in both application. Also, high correlation between crop yield and N rate in second application confirmed the influence of N doses for yield production. Furthermore, the negative effect of elevation on the crop yield was observed.

Název v anglickém jazyce

Evaluation of crop yield spatial variability in relation to variable rate application of fertilizers

Popis výsledku anglicky

The application of nitrogen fertilizers is a challenge both in environmental and economic terms. The solution to the issue of rational nitrogen management is the variable rate application (VRA) of nitrogen fertilizers, which respects site specific soil conditions and the nutrient status of plants. The methodology of the work was based on the collection of data from the Isaria crop sensor system (IRMI, IBI values and N rate), yield maps of winter wheat from the harvesters, Sentinel-2 NDVI image and digital elevation model of the fields. All experimental work was carried out in Zdounky (Kromeriz) during the year 2016. These data were processed and analyzed by using geographic information systems and then statistically evaluated the relationships between variables. There was found a moderate positive relationship between the Sentinel NDVI imagery and the IBI and IRMI indices in both application. Also, high correlation between crop yield and N rate in second application confirmed the influence of N doses for yield production. Furthermore, the negative effect of elevation on the crop yield was observed.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

MendelNet 2017: Proceedings of International PhD Students Conference

ISBN

978-80-7509-529-9

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

86-91

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

8. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000440194500013