Scientists of Stavropol Agrarian University studied the productivity of winter wheat in the Central Ciscaucasia. The scientific study was included in the 1st quartile of the Web of Science journal and the 2nd quartile of the Scopus journal.
Every 30 years the air temperature increases by about 1.4 degrees. This entails a decrease in precipitation and drought, which negatively affects winter crops. It was found that in 2019-2021, temperature shifts led to a decrease in plant density and a decrease in the yield of drought-resistant varieties.
Winter wheat should be sown in late September-October. However, the time of precipitation has changed to later. As a result, the soil is dry, sowing equipment cannot penetrate it, and the grain remains on the surface. The task is not only to get the seeds into the soil, but also to ensure that they have the right conditions for development. Wheat needs to go through the tillering stage before winter, otherwise the crop will die.
A study by scientists from the University makes it possible to determine how different wheat varieties in the arid regions of Stavropol Territory respond to climate change. In each phase of culture development, a cut of quantitative indicators of its productivity was made. Among other factors of influence on wheat, crops that grew in the territory before wheat were taken into account, and their impact on the current crop was assessed. In addition to the classical formulas, author's formulas were also used, developed specially for this study over three years of scientific work.
In particular, scientists have found that in order to reduce the adverse effect of the arid environment on the yield of winter wheat, in the case of the Central Ciscaucasia, production sites should be moved as far north as possible. For the highest yield, the varieties "Bagrat" and "Zustrich" should be introduced. Models have also been created that describe the impact of climate and predecessors on wheat yields.
Возврат к списку
