Effect of different soil and weather conditions on efficacy, selectivity and dissipation of herbicides in sunflower

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F20%3A83619" target="_blank" >RIV/60460709:41210/20:83619 - isvavai.cz</a>
Result on the web
<a href="https://www.agriculturejournals.cz/publicFiles/223_2020-PSE.pdf" target="_blank" >https://www.agriculturejournals.cz/publicFiles/223_2020-PSE.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/223/2020-PSE" target="_blank" >10.17221/223/2020-PSE</a>

Result language
angličtina
Original language name
Effect of different soil and weather conditions on efficacy, selectivity and dissipation of herbicides in sunflower
Original language description
Six sunflower herbicides were tested at two application rates (1N and 2 N) on three locations (with different soil types) within three years (2015-2017). Efficacy of tested herbicides on Chenopodium album increased with an increasing cation exchange capacity (CEC) of the soil. Efficacy of pendimethalin was 95 %, flurochloridone and aclonifen 94 %, dimethenamid-P 72 %, pethoxamid 49 % and S-metolachlor 47 %. All tested herbicides injured sunflower on sandy soil (Regosol) which had the lowest CEC, especially in wet conditions (phytotoxicity 27 % after 1N application rate). The highest phytotoxicity was recorded after the application of dimethenamid-P (19 % at 1N and 45 % at 2N application rate). Main symptoms of phytotoxicity were leaf deformations and necroses and the damage of growing tips, which led to destruction of some plants. Aclonifen, pethoxamid and S-metolachlor at 1N did not injure sunflower on the soil with the highest CEC (Chernozsem) in any of experimental years. Persistence of tested her
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project
<a href="/en/project/QJ1510186" target="_blank" >QJ1510186: Optimization of technology sunflower protection according to integration production</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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