Due to the agricultural and economic importance of wheat, there is an ongoing concern to study the impact of weeds on wheat production (https://ro.wikipedia.org/wiki/Gr%C3%A2u, https://www.scribd.com/doc/77393966/graul,http://www.fao.org/statistics/en/,https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Agriculture). In this context, the researches that are the subject of this work aimed to establish the most effective current means of chemical control of weeds in autumn wheat crops, with direct effects on production results. The research was made within the company SC Prodagro Vest SRL from Arad, during two years: 2021 and 2022, being tested a number of 11 post-emergent herbicides to combat weeds in the wheat crop, in order to reduce the degree of weeding, the cost per the product unit and, by default, the increase in productivity. The placement of the experimental field for combating weeds in the wheat crop was done according to the randomized block method, being a monofactorial experiment, with 12 variants, in four repetitions. In the first year of research, 2021, in the non-herbicized control variant, 67.5 weeds/m2 were recorded, and in the second year, 2022, were present 54.7 weeds/m2. The most effective weed control, over 90%, was recorded in the variants: V6 - aminopyralid 30% + florasulam 15% - 33 g/ha, V2 - 2,4-D acid 300 g/l + florasulam 6.25 g/l – 0.6 l/ha and V9 – tribenuron – methyl 600 g/kg + florasulam 200 g/kg – 25 g/ha., in 2021, respectively V9 in 2022. There were no obvious symptoms of toxicity in cultivated plants, as a result of the application of the herbicide products in the experiments. The level of wheat production was determined by the climatic conditions, but also by the effectiveness of herbicides in combating the present segetal species.

herbicides, weeds, wheat, production, variants

agronomy

Presentation: poster