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

Result code in 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>

Result on the web

<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

—

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Article name in the collection

MendelNet 2017: Proceedings of International PhD Students Conference

ISBN

978-80-7509-529-9

ISSN

—

e-ISSN

neuvedeno

Number of pages

6

Pages from-to

86-91

Publisher name

Mendelova univerzita v Brně

Place of publication

Brno

Event location

Brno

Event date

Nov 8, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000440194500013