Effectiveness of herbicides of JSC August company on potatoes

UDC 635.21:633.49:631.563

Zeiruk V.N., Vasil’eva S.V., Belov G.L., Derevyagina M.K.

A field assessment of the biological and economic effectiveness of the continuous-action herbicide Tornado 500, BP and two schemes for the use of herbicides from different chemical classes of JSC August company against the most common types of weed vegetation was carried out. The research was carried out in 2017–2019 at the experimental base Korenevo (Lyuberetsky district of the Moscow region) on a plot intended for planting potatoes and directly on the plantings of the Kolobok variety. Planting density – 44 thousand tubers/ha (75×30 cm). The planting period is the first decade of May. All accounting, efficiency determination, and statistical processing were carried out according to generally accepted methods. The infestation counts were carried out by counting weeds on test sites of 0.25 m2 in a staggered order in ten places. The surveys were carried out after a month, a month and a half, and before the potato harvest. The first scheme consisted of pre-emergence treatment with Gambit, SC, 3,5 l/ha and post-emergence-tank mixture of Escudo, EDG, 0,025 kg/ha and Lazurit Super, KNE, 0,4 l/ha. The second scheme: fractional application of Lazurit, SP – in the pre-emergence period of 0,8 kg/ha and when the potato plants reach a height of 5–10 cm 0,3 kg/ha with the addition of Escudo, EDG, 0,025 kg/ha. Both schemes were used with the addition of the adjuvant Allure, W, 0,2 l/ha. When studying the species composition of weeds, it was revealed that the largest share in their total number is occupied by young ones: white marsh, erodium, scentless false mayweed and from perennial ones-field sedge and creeping wheatgrass. The biological efficiency of the autumn treatment with the herbicide Tornado 500, BP was 92,1–97,3%. The biological efficiency in the average two years of the first scheme was 75,6–98,3%, the second – 68,9–93,4%. The use of herbicides of JSC August company on the medium-ripe variety Kolobok in conditions of various moisture supply of the growing seasons of 2017–2019 provided an increase in the gross yield of 25,8 and 24,2%, respectively, compared to the control (24,8 t/ha).

Key words: potato, weed plants, Tornado 500, Lazurit, Lazurit Super, Gambit, Escudo, Аllyur

Zeiruk V.N., D.Sci. (Biol.), head of laboratory of plant protection

Vasil'eva S.V., Cand. Sci. (Agr.), leading research fellow of laboratory of plant protection

Belov G.L. (author for correspondence), Cand. Sci. (Biol.), senior research fellow of laboratory of plant protection. E-mail: belov.grischa2015@yandex.ru

Derevyagina M.K., Cand. Sci. (Biol.), leading research fellow of laboratory of plant protection

Russian Potato Research Centre

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For citing: Effectiveness of herbicides of JSC August company on potatoes. V.N. Zeiruk, S.V. Vasil’eva, G.L. Belov, M.K. Derevyagina. Potato and vegetables. 2021. No6. Pp. 29-32. https://doi.org/10.25630/PAV.2021.94.54.004 (In Russ.).

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