Issue |
E3S Web of Conf.
Volume 510, 2024
IV International Conference on Ensuring Sustainable Development in the Context of Agriculture, Energy, Ecology and Earth Science (ESDCA2024)
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Article Number | 01016 | |
Number of page(s) | 7 | |
Section | Agriculture | |
DOI | https://doi.org/10.1051/e3sconf/202451001016 | |
Published online | 09 April 2024 |
Changes in regional climatic characteristics in the Non-Chernozem zone of the Russian Federation and their impact on soybean yields
Institute of Seed Production and Agricultural Technologies - branch of the Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 1, st. Parkovaya, p. Podvyazye, Ryazan District, Ryazan Region, 390502, Russia
* Corresponding author: elenagureeva@bk.ru
The work analyzes agroclimatic resources in the Non- Chernozem zone of Russia for the period from 1981 to 2023. As a result of studying the data array, it was established that the values of the sum of active temperatures in the agroclimatic subzones of the Non-Black Earth Region increased by 200-250°C, the amount of precipitation falling during the growing season decreased by 20-40 mm, the hydrothermal humidification coefficient (HTC) of Selyaninov decreased by 0.1- 0.3 p. The changes led to a shift of the isotherm of the sum of active temperatures by 150-200 km towards high latitudes. A grouping of years of research was carried out according to the hydrothermal coefficient, the yield and growing season of soybean variety Georgia were determined. As a result of the research, it was revealed that the highest average seed yield for the group of years (moistening conditions) was obtained in the year with sufficient moisture and amounted to 2.47 t/ha, and the lowest - 1.18 t/ha per year with insufficient moisture. A significant relationship has been established between seed yield, the weight of 1000 seeds and the HTC of the growing season: the variation in soybean yield during the years of research is 63% associated with the influence of factors: the weight of 1000 seeds and the HTC of May-August (R2 = 0.63). Thus, the recorded upward trend in the sum of active temperatures in the region for the crop is positive and contributes to the expansion of soybean crops in the Non- Chernozem zone of the Russian Federation.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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