Reakcija paradajza, paprike, suncokreta i soje na niske količine nikosulfurona
Reaction of tomato, pepper, sunflower and soybean plants to low doses of nicosulfuron
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Drift predstavlja zanošenje kapljica sredstava za zaštitu bilja kroz vazduh, pri čemu mikro
količine tih sredstava mogu uticati na bilo koji neciljni organizam ili životnu sredinu. Postoje
tri moguća scenarija neciljnog kretanja pri kojima se mogu očekivati oštećenja biljaka mikro
količinama herbicida, a to su: drift čestica (Eng. particle drift) koji nastaje kretanjem sa vazdušnim
strujama/vetrom, zanošenjem koje nastaje kao posledica isparavanja (volatility) i kao posledica
kontaminacije rezorvoara prskalice. Značajna oštećenja koja mogu nastati kao posledica driftu su
oštećenja susednih useva, zagađenje životne sredine, niži nivo efikasnosti primenjenog herbicida,
dok u slučaju kontaminacije rezorvoara oštećenja mogu nastati samo u tretiranom polju. U cilju
ispitivanja negativnih posledica zanošenja nikosulfurona, biljke paradajza, paprike, suncokreta
i soje su gajene u stakleniku i tretirane niskim količinama primene herbicida, a nakon 21. dana
ocenjeni su efekt...i primenjenih tretmana vizuelnom ocenom, kao i merenjem suve mase, visine i
površine listova. Soja se pokazala kao najtolerantnija na nikosulfuron za razliku od paprike koja je
bila najsotljivija na niske količine herbicida. Na osnovu dobijenih rezultata može se zaključiti da
su niske količine primene herbicida različito uticale na ispitivane biljke i da je potrebno preduzeti
mere opreza da se spreči zanošenje herbicida na susedne biljke.
Drift is the movement of plant protection product droplets through the air and can affect any
non-target organism or the environment. In fact, there are three possible scenarios that can be
considered as an off-target movement: particle drift, volatility, and contamination of the spray
tank. Significant damages that can occur as a consequence of drift are damages to neighbouring
crops, environmental pollution, lower level of efficiency of the applied herbicide. Meanwhile, in
the case of tank contamination, injuries can occur only in the treated field. In order to examine
the negative consequences of nicosulfuron drift, four crops were grown in a greenhouse and
treated with low doses of herbicide, after which they were returned to cultivation. After 21 days,
the effects of applied treatments were assessed through visual assessment of injury, dry weight,
leaf height, and leaf area. Based on the obtained results, it can be concluded that low doses of
nicosulfuron expre...ssed different effects on the tested plants and that it is necessary to take
precautionary measures to prevent herbicides from spreading to neighbouring plants.
Keywords:
drift / off-target movement / crop injuries / herbicide micro-rates / zanošenje herbicida / oštećenja useva / mikro količine herbicidaSource:
Acta herbologica, 2021, 30, 2, 129-135Publisher:
- Beograd : Herbološko društvo Srbije