Efficacy of Herbicides on Controlling Ambrosia Artemisiifolia in Maize Crop
2023
Sergiu Avram | Saida Feier-David | Lavinia Stef | Gabi Dumitrescu | Ioan Pet
Although, morphologically, maize is one of the most vigorous species, with a well-developed root system and stem, lately it has become sensitive to one particular species of weeds, namely Ambrosia artemisiifolia. With devastating effects on agriculture, on the environment and on human health, Ambrosia artemisiifolia, comonly named ragweed, is one of the most harmful invasive species. Currently, it belongs to the category of dominant weeds in some agricultural crops, which causes significant damage in production and from observations made in the maize crop, its frequency exceeds 50 individuals on a square meter. This paper presents the results of herbicides efficacy tests regarding the control of this invasive species in maize crop. The research was carried out in the Timiș Plain, on a eutricambosoil soil type, poorly glayed, with high fertility, due to good physical and chemical properties. Of the four herbicides applied post-emergence in maize crop, the best efficacy was obtained by Glyfos Ultra herbicide, applied in doses of 3.5 l / ha, which ensured a significant reduction in coverage, of over 90% 15 days after application, while Kideka herbicide has been situated at the opposite pole, with an efficacy of about 82%. Also, the results of the same set of herbicides applied indicate very high efficacy of Glyfos Ultra herbicide, which exceeds a percent of 98% 30 days after application, while the lowest results were obtained by the herbicide named Dicash 480 SL of approximately 67%.
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