Russian Federation
Russian Federation
UDC 639
UDC 633.854.434
UDC 632.51
The study of the effectiveness of herbicides in combination with stimulant preparations and liquid mineral fertilizer in suppressing weed cenosis in industrial hemp crops and their effect on the formation of plant yields was carried out in 2021-2023 in the conditions of the Federal Research Center for Bast Fiber Crops – Separate division "Penza Research Institute of Agriculture" in the Penza region. The herbicidal protection carried out (Lontrel Grand and Miura) in combination with stimulating drugs (Artafit, AgroVerm Ekran, Lignohumate) and liquid mineral fertilizer (Izagri Vita) ensured the effectiveness of suppression of dicotyledonous weeds in the hemp agrocenosis at the level of 84.6-91.2%, monocots – 95.8-98.0%. The effect of stimulating substances contributed to an increase in field germination by 5.9-7.5%, heribicides and foliar feeding – the safety of cultivated plants – by 2.3-4.1%. When using the herbicide Lontrel Grand in combination with the studied drugs, the preserved yield of stems was 22.3-24.6%, seeds – 18.2-20.8%. Protective complexes with the Miura herbicide made it possible to obtain an additional 12.8-25.6% of the stem yield and 11.7-24.7% of the seed yield. A significant increase in leaf surface area by 60.0-68.1% occurred under the influence of the protectants Artafit, AgroVerm Screen and Izagri Vita fertilizers in combination with the herbicides studied. The largest preserved yield of stems and seeds was obtained from treating seed with AgroVerm Ekran, plants with Miura herbicide and Izagri Vita fertilizer 1.64 and 0.38 t/ha, as well as when using the herbicide Lontrel Grant in combination with Artafit and Izagri Vita – 1.58 and 0.32 t/ha, respectively.
seed hemp, agricultural technology, protective complex, weediness, efficiency of application, field germination, plant safety, productivity
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