E. V. Timoshenko1, A. G. Klykov2
1 Far Eastern State Agrarian University, Blagoveshchensk, Russia
2 A. K. Chaika Federal Scientific Center for Agrobiotechnology of the Far East, Ussuriysk, Timiryazevskiy settlement, Russia
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Volume 25 No. 9
Date of paper submission: 03.02.2025, date of review: 08.04.2025, date of acceptance: 23.05.2025.
Published: 09/30/2025
Abstract. The purpose of the research was to determine the optimal sowing dates of buckwheat variety Devyatka in the conditions of the southern agricultural zone of the Amur region, to increase its productivity, in comparison with the traditional for the region variety Amurskaya mestnaya. Methods. The field experiment was laid on the experimental field of the Far Eastern State Agrarian University in the period of 2017–2018 and 2022–2023. Repetition of the experiment is fourfold. Various agronomic sowing dates were studied, from early May, to late June. Pre-sowing soil preparation included early spring harrowing and several pre-sowing cultivations. The total area of one plot was 66 m2 , the accounting area was 40 m2 . The sowing method was row sowing with row spacing of 15 cm, seeding rate was 3,0 million germinated seeds per hectare. Surveys and observations were carried out according to the methods of the state variety testing. Scientific novelty consists in the comparative analysis of new for the region and traditional buckwheat variety in the conditions of the Amur region, which allowed to determine the optimal sowing dates to increase yield and improve grain quality. The results of the study showed that the optimal sowing period for the Devyatka variety is the third decade of May, which ensures a maximum yield of up to 16.5 c/ha. While for Amurskaya mestnaya variety the most favorable is sowing in the first decade of June. Premature and late sowing dates lead to a significant decrease in yield due to unfavorable weather conditions. The data obtained can serve as a basis for the following.
Keywords: buckwheat, variety, sowing date, plant height, 1000 grain weight, yield
For citation: Timoshenko E. V., Klykov A. G. Formation of buckwheat productivity at different sowing dates in the Amur region. Agrarian Bulletin of the Urals. 2025; 25 (09): 1361‒1371. https://doi.org/10.32417/1997-4868-2025-25-09-1361-1371
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