Tank herbicide mixtures for oil flax sowings
The main purpose of our research was to identify the most effective tank mixtures of herbicides (recommended for oil flax) that can be applied on vegetating plants in conditions of stable and insufficient moisture in the south of Russia, prove weeds destruction and the absence of negative effects on cultivated plants and high productivity indicators. The experiment scheme included the study of two herbicides and a combination of five tank herbicide mixtures, control without treatment and control without treatment with manual weeding. An object of the research was oil flax varieties Raduga and FLIZ. The type of contamination is mixed, with a predominance of common bluegrass (Pôa triviâlis L.), ragweed (Ambrosia artemisiifôlia L.), pigweed (Amarânthus retrofléxus L.), frost blite (Chenopôdium âlbum L.), corn lily (Convolvulus arvensis L.), wild buckwheat (Fallopia convolvulus L.), common hemp-nettle (Galeopsis tetrahit L.) and some species of foxtail (Setaria viridis L. Beauv и Setaria pumila Poir. Schult). In 2017-2019 in the zone of unstable moisture (Krasnodar), the average yield of oil flax FLIZ amounted to 1.16 t per ha for three years of research in the control without treatment; in variants with application of the herbicides Tifi, Magnum and a tank mixture Gerbitox + Miura we obtained significant yield increases of 0.13; 0.10 and 0.17 t per ha, respectively. In 20182019 in the zone of insufficient moisture (Oporny settlement, Azov district, Rostov region), the yield of the variety Raduga was at the control level - 0.91; 0.90 and 0.92 t per ha, respectively, in the variants with application of the herbicides Tifi, Magnum and the tank mixture Sekator Turbo + Miura. The application of the tank mixtures Tifi + Miura, Magnum + Miura led to a decrease in crop productivity.