Effectiveness of Kelvin Plus herbicide against weeds in corn crops
V.N. Bagrintseva, E.I. Guba, S.V. Kuznetsova
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Abstract. In 2022–2023 on the experimental field of the FSBSI ARRSI of corn in a zone of sufficient moistening in the Stavropol region, studies were conducted to examine the effectiveness of the use of the Kelvin Plus herbicide, VDG in corn crops. We studied the effectiveness of using the herbicide Kelvin Plus, VDG on corn hybrids at the 5 leaves phase with application rates of 0.35 and 0.4 kg/ha, as well as with a rate of 0.4 kg/ha at 8 leaves phase. Herbicide Kelvin Plus was used in a mixture with DASH (1.2 l/ha). Research tasks included determining the number and phytomass of the weed component of the agrophytocenosis. In 2022, 21 days after herbicide application at a rate of 0.35 kg/ha at 5 leaves phase, weeds death was 94.3 %, from 0.4 kg/ha of the chemical at 5 leaves phase 92.1 % died, at 8 leaves phase – 73.5 % of weeds. Kelvin Plus herbicide at an application rate of 0.35 kg/ha showed high efficiency against dicotyledonous and monocotyledonous weeds. On average for 2022–2023 21 days after the application of the Kelvin Plus herbicide at an application rate of 0.35 kg/ha, the total infestation decreased by 84.7 %, the above-ground mass of weeds decreased by 83.0 %. The death of dicotyledonous and monocotyledonous weeds was 86.3 and 82.6 %, their weight decreased by 79.7 and 92.8 %, respectively. Due to weeds destruction while using the herbicide, the grain yield of the hybrid Mashuk 185 MV increased by 2.44 t/ha (66,7 %), Mashuk 355 MV – by 2.26 t/ha (67,7 %).
Keywords: corn, herbicides, weeds, yield
For citation. Bagrintseva V.N., Guba E.I., Kuznetsova S.V. Effectiveness of Kelvin Plus herbicide against weeds in corn crops. News of the Kabardino-Balkarian Scientific Center of RAS. 2024. Vol. 26. No. 2. Pp. 80–88. DOI: 10.35330/1991-6639-2024-26-2-80-88
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Information about the authors
Valentina N. Bagrintseva, Doctor of Agricultural Sciences, Professor, Chief Researcher of the corn cultivation technology department, All-Russian Research Scientific Institute of Corn;
357528, Russia, Pyatigorsk, 14o Ermolov street;
maize-tehno@mail.ru, ORCID: https//orcid.org/0000-0002-7116-1974
Elena I. Guba, Senior Researcher of the corn cultivation technology department, All-Russian Research Scientific Institute of Corn;
357528, Russia, Pyatigorsk, 14o Ermolov street;
maize-tehno@mail.ru, ORCID: https//orcid.org/0000-0002-2548-8298
Svetlana V. Kuznetsova, Candidate of Agricultural Sciences, Leading Researcher of the corn cultivation technology department, All-Russian Research Scientific Institute of Corn;
357528, Russia, Pyatigorsk, 14o Ermolov street;
maize-tehno@mail.ru, ORCID: https//orcid.org/0000-0001-6774-0351