PRODUCTIVITY OF WINTER WHEAT IN FIELDS CLEARED OF CREEPING MUSTARD

Abstract

The productivity of winter wheat, as well as other grain crops, depends to a large extent on the infestation of fields and in particular on the stem of the quarantine weed – creeper bittern. The article presents the data of experiments on the study of agrotechnical and chemical methods of fighting creeping bittern. In experiments, we studied 3 methods of the main treatment of black steam, after which winter wheat was sown: plowing to a depth of 0.20-0.22 m (control); non-fallow processing to a depth of 0.25-0.27 m and chisel processing to a depth of 0.45 m with a reservoir turnover of 0.20-0.22 m. in the first decade of June, when the creeping bittern was in the budding or flowering phase, black steam was treated with two and three-component tank mixtures of herbicides. The greatest biological effectiveness of herbicides after 60 days was on the Curtin of creeper mustard with spraying with a three-component tank mixture of Esteron, Dominator and Lontrel Grand and was equal to 89 to 94% depending on the previous main treatment of black steam. The largest biological yield of winter wheat against the background of chisel processing and in General according to experience was on the variant with a three component tank mix Esteron+Dominator+Lontrel Grand and on average for 2016-2019 it was 3.46 t / ha, which was 0.41 t/ha or 4.1 centner per hectare more than on the background of plowing and 0.59 t / ha or 5.9 centner per hectare more than on the background of non-tillage.