Abstract
The results of studies to determine the biological and economic efficiency of a complex of herbicides in crops of spring rape variety Neman in the south of the Non-Chernozem zone are presented. According to the data of the experiments, it was revealed that in the crops of rape there is a polyspecific composition of weeds. The most was the used for the control of broad-leaved weeds Etamaster, VDG, (etametsulfuron-methyl 750 g/kg), 0.025 kg/ha and for the control grass weeds Miura, EC (quizalofop-P-ethyl 125 g / l), 1 l/ha. The decrease in the number of weeds was 90%, weight – 92% compared to the control. The economic efficiency on this option was also the highest, the yield was 2.94 t/ha, the increase to the control was 1.04 t/ha, the collection of crude fat was 1.25 t/ha, the collection of crude protein was 0.82 t/ha.
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