Zatiranje plevelov v vinogradu z alternativnimi metodami v primerjavi s herbicidom glifosat

Andrej PAUŠIČ, Mario LEŠNIK, Nuša TURK

Povzetek


V dveletnem poskusu smo preučevali šest različnih metod zatiranja plevelov. Preučevane metode so bile: uporaba herbicida glifosat (GL), uporaba pripravkov na podlagi ocetne kisline (OK), pelargonske kisline (PK) ter eteričnega olja agrumov (EO), košnja plevelov s kosilnico na nit (KO) in ožiganje plevelov z ognjem (OG). Alternativne metode zatiranja plevelov so bile značilno manj učinkovite od uporabe herbicida glifosat. Zaradi manjše učinkovitosti alternativnih metod so nastale obsežne izgube pridelka, in sicer pri OK 31 %, PK 30,6 %, EO 22,7 %, KO 5,4 % in pri OG za 12,9 %. Strošek izvedbe zatiranja z alternativnimi metodami je bil značilno večji od stroškov pri GL, pri OK za 3,2-krat, pri PK za 7,1-krat, pri EO za 3,8-krat, pri KO za 3,8-krat in pri OG za 5,8-krat večji. Če bi z uporabo alternativnih metod želeli doseči primerljivo učinkovitost zatiranja kot pri obravnavanju GL, bi morali izvesti 5 aplikacij alternativnih pripravkov letno, oziroma izvesti štiri košnje ali pet ožiganj plevelov letno.


Ključne besede


pleveli; vinograd; herbicidi; košnja; ožiganje; stroški

Celotno besedilo:

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DOI: http://dx.doi.org/10.14720/aas.2021.117.3.2022

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