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EFFECTIVE OF AUTUMN APPLICATION OF HERBICIDES ON WEED CONTROL WHILE GROWING WINTER WHEAT

Author(s) Ivanuk V. Ya., PhD of Agricultural Sciences, , Lviv National Agrarian University
Category 201 "Agronomy"
year 2019 issue №2, 2019
pages 22-24 index UDK 633.11:632.954
DOI 10.31395/2310-0478-2019-2-22-24 (Link)
Abstract Considering the tendencies of climatic conditions change, autumn application of herbicides while growing winter wheat is an important factor of weed control. Combined application of the agents Lancelot (0.033 kg/ha)+Pallas (0.15 l/ha) in the phase of BBCH 13 of wheat contributes to a perfect control for loose silky-bent and dicotyledon weeds, as well as support for the yield by almost 30%. Spraying of wheat with a tank mixture of Tru (0.02 kg/ha)+Stomp (2.5 l/ha) makes no sufficient effect on loose silky-bent. All combinations of those herbicides reduced the weed mass before harvesting. Under application of Lancelot+Pallas and Marathon, it accounted for only 13.6 and 15.1 g/m2 respectively, and biological efficiency – 93.2 and 92.2 %. Autumn application of the herbicides contributed to increase of wheat yield capacity by 1.50-1.73 t/ha, or 25.7-29.6 %.
Key words winter wheat, herbicides, weeds, selectivity, yield
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