Authors:
S. I. Smurov,
O. V. Grigorov,
S. N. Ermolaev
Belgorod State Agrarian University, Mayskiy settlement, Belgorod region, Russia
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The purpose is to determine the degree the influence of weather conditions in the Belgorod region on the yield of spring barley over a long period of study. Methods. An analysis of the relationship between agrometeorological conditions and the yield of spring barley and the agrometeorological conditions of the region was carried out. Scientific novelty. The data of observations of weather conditions and the yield of spring barley for the period from 1967 to 2021 in the forest-steppe zone of the Belgorod region are presented. Results. When analyzing the agrometeorological conditions, it was found that the average daily air temperature for the growing of barley took the maximum value in 2010 (21.7 °C), and the minimum in 1990 (14.8 °C). Also in 2010, the largest deviation of it from the average long-term values was established, which was equal to 4.2 °C. The amount of precipitation was the largest in 1997 and amounted to 402.8 mm, which is 202.8 mm higher than the average long-term values. When calculating the hydrothermal coefficient of G. T. Selyaninov (HTC), it was found that more common were years with slightly dry conditions, which numbered 15 out of 55 years. Years with very dry conditions were rare and in quantitative terms were 6 years. As a result of the conducted research, it was found that the sowing period and the amount of precipitation during the growing season significantly affected the grain yield of spring barley. The highest yield of spring barley was when it was sown on March 20–31 (30.8 c/ha) and in those years when it fell outside the growing season of the crop 81-100% of the average long-term values (26.4 c/ha). The maximum grain productivity of spring barley was noted in 2019 (43.7 c/ha).
Keywords: spring barley, average daily air temperature, sum of precipitation, G. T. Selyaninov hydrothermal coefficient, sowing time, yield
For citation: Smurov S. I., Grigorov O. V., Ermolaev S. N. The role of agrometeorological conditions in changing the yield of spring barley in the forest-steppe zone of the Belgorod region. Agrarian Bulletin of the Urals. 2024; 24 (12): 1624‒1635. DOI: https://doi.org/10.32417/1997-4868-2024-24-12-1624-1635. (In Russ.)
Download the full text of the article
