The present invention relates to a method for preparing a tank mix, which comprises the step of contacting a pesticide formulation, water, and a tank mix adjuvant, wherein the pesticide is an anionic herbicide, and the tank mix adjuvant comprises a base, which contains a mixture of an alkali salt of carbonate and an alkali salt of hydrogencarbonate, wherein the tank mix adjuvant is present in form of an aqueous liquid, which contains at least 50 g/l of the base, or in form of a particulate solid, which contains at least 10 wt.% of the base, and wherein the tank mix has a tank mix acidity of at least pH 8,0. The invention also relates to a tank mix adjuvant for increasing the efficacy of a pesticide, wherein the tank mix adjuvant comprises an auxiliary and a base, which contains a mixture of an alkali salt of carbonate and an alkali salt of hydrogencarbonate, and wherein the tank mix adjuvant is present in form of an aqueous liquid, which contains at least 50 g/l of the base, or in form of a particulate solid, which contains at least 10 wt.% of the base and to a method of controlling phytopathogenic fungi and/or undesired vegetation and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein the tank mix is allowed to act on the respective pests, their environment or the plants to be protected from the respective pest, on the soil and/or on undesired plants and/or the crop plants and/or their environment.Настоящее изобретение относится к способу получения баковой смеси, включающему стадию введения в контакт пестицидного препарата, воды и адъюванта для баковой смеси, причем пестицид представляет собой анионный гербицид, и адъювант для баковой смеси содержит основание, имеющее в своем составе смесь соли-карбоната щелочного металла и соли-гидрокарбоната щелочного металла, причем адъювант для баковой смеси находится в виде водной жидкости, содержащей по меньшей мере 50 г/л основания, или в виде твердочастичного вещества, содержащего по мень
