Effect of nitrogen fertilization on the colour of wheat leaves as an indicator of application deficiency

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027031%3A_____%2F19%3AN0000092" target="_blank" >RIV/00027031:_____/19:N0000092 - isvavai.cz</a>
Result on the web
<a href="http://www.vuzt.cz/svt/vuzt/publ/P2019/090.pdf" target="_blank" >http://www.vuzt.cz/svt/vuzt/publ/P2019/090.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of nitrogen fertilization on the colour of wheat leaves as an indicator of application deficiency
Original language description
The article is focused on comparing vegetation indices tested on plants grown in controlled environment. The indices were derived from scanned RGB images of leaves of spring wheat, variety Dafne. They were the Kawashima index (R-B)/(R+B), the excess green index (2G-(R+B))/(R+G+B) and hue. The images were processed in the ImageJ program and compared based on histograms of index values over the leaf areas. There were four variants with varying degree of fertilizer, herbicide and fungicide application to the plants, including a control variant with no application. Leaf samples were analysed for 11 weeks after the emergence of plants. The indices did not reliably distinguish between the variants, however greater differences were found between early and later stages of the plant development.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceeding of 7th International Conference on Trends in Agricultural Engineering 2019
ISBN
978-80-213-2953-9
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
524-528
Publisher name
Česká zemědělská univerzita v Praze
Place of publication
Praha
Event location
Česká zemědělská univerzita v Praze
Event date
Sep 17, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000521578500090

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