Original scientific paper

Effect of the reduce topramezone rate and adjuvants on Chenopodium album (L) and Echinochloa crus-galli (L) in maize

Valentina Šoštarčić orcid.org/0000-0002-6887-7680 ; Sveučilište u Zagrebu Agronomski fakultet Zagreb, studentica diplomskog studija Fitomedicina
Maja Šćepanović orcid.org/0000-0003-4661-5417 ; Agronomski fakultet Sveučilišta u Zagrebu
Klara Barić orcid.org/0000-0002-1341-8954 ; Agronomski fakultet Sveučilišta u Zagrebu

Abstract

Field trial was conducted in 2013 in maize at the Šašinovečki Lug to establish efficacy of herbicide topramezone using recommended dose and reduced doses of topramazone (2/3, 1/2 , 1/4 i 1/8). Only reduced doses were combined with three different adjuvants: nonionic surfactant - NIS (Break thru), concentrated vegetable oil – COC (White oil) and modified vegetable oils - MSO (Dash HC). In this study percentage of damage or efficacy of topramezone was observed on two weed species Chenopodium album L. and Echinochloa crus-gali L. Results indicate that application of reduced topramezone doses with proper type of adjuvant is effective on investigated weed species. Chenopodium album was equally controlled (91, % -99,1 %) with all reduced topramezone rates when applied with MSO. Echinochloa crus -galli control was influenced by type of adjuvant added to topramezone, but only when 2/3 topramezone rate was applied with MSO (93,3 %) good efficacy was achieved.

Keywords

adjuvants; MSO; NIS; COC; topramezone; Chenopodium album; Echinochloa crus-gall; maize

Hrčak ID:

169347

URI

https://hrcak.srce.hr/169347

Publication date:

1.6.2015.

Article data in other languages: croatian

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