Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 1
Written by Mariyan YANEV
In 2020 and 2021, a field trial with the maize hybrid P 9241 in the experimental field of the Agricultural University - Plovdiv, Bulgaria was conducted. The herbicidal products Stomp Aqua - 4.00 l ha-1 and Gardoprim Plus Gold - 3.50 l ha-1 applied to soil, as well as Adengo - 0.44 l ha-1 and Camix - 2.50 l ha-1 applied in the 1st - 2nd leaf stage of maize were evaluated. The efficacy of the studied products by the 10-score visual scale of EWRS was reported. Selectivity was also assessed using the 9-score scale of EWRS. The highest herbicidal efficacy against Amaranthus retroflexus L., Xanthium strumarium L., Abutilon theophrasti Medik., Solanum nigrum L., Sorghum halepense (L.) Pers. developed from seeds was reported after the application of Adengo. Of the studied herbicides, the highest control against Chenopodium album L. was reported for Camix. The biological yields of maize, as well as the structural elements of the maize yield were the highest after the application of Adengo and Camix applied in 1st - 2nd leaf stage of the crop.
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