Thesis for obtaining the scientific degree of Doctor of Philosophy in specialty
201 Agronomy. Vinnytsia National Agrarian University, Vinnytsia, 2024.
The thesis is devoted to the study of the intensity of heavy metals accumulation
in wheat and barley grains depending on the period of cultivation, the level of soil
pollution and soil moistening and fertilization with mineral fertilizers.
The scientific novelty of the obtained research results lies in the studied
intensity of the accumulation of heavy metals by cereal grains in conditions of man-
made load on gray forest soils, depending on winter and spring forms at different
levels of soil moisture, and mineral fertilization in the natural and climatic conditions
of the right-bank forest-steppe.
For the first time, an assessment of the grain quality of cereal crops was carried
out according to the intensity of accumulation of heavy metals depending on the
winter and spring forms of cereals, at different levels of soil moisture and soil mineral
fertilization in the conditions of the right bank forest steppe. The content of the
coefficient of accumulation and danger of lead, cadmium, zinc and copper in the
grain of winter and spring crops of wheat and barley was investigated
The predicted intake of lead, cadmium, zinc, and copper in wheat and barley
grown under intensive agriculture in the climatic conditions of the Right-bank Forest
Steppe has developed further.
In the introductory part of the qualifying scientific work, the relevance of the
research topic is substantiated, the goal and task are defined, the scientific novelty
and practical significance of the obtained results are described.
In the first chapter, an analysis of domestic and foreign literary sources on the
economic importance and safety of cereal grains is carried out. The issue of food
8
security and environmental security in the modern world under the conditions of
climate change in today's conditions is analyzed.
In the second chapter, the soil and climatic conditions of the studied years are
presented, the effect of the hydrothermal conditions of the growing seasons on the
growth and development of cereal plants is established. Hydrothermal indicators
during the years of research are described and analyzed. The researched varieties and
research methodology are characterized.
In the sections of the experimental directions of the thesis research, the results
on the intensity of the accumulation of heavy metals in the grain of cereal crops
during different periods of cereal cultivation at different levels of soil moisture and
their mineral fertilization are described. Environmental and economic efficiency is
substantiated.
Research on the topic of the thesis was conducted during 2021–2023 on the
gray forest soils of Vinnytsia in the conditions of the right bank forest steppe.
It was established that when studying the intensity of the accumulation of
heavy metals in the grains of cereal crops during different periods of cereal
cultivation from the analyzed samples of winter wheat grown in the conditions of the
right-bank forest-steppe under intensive agriculture, which belonged to the third
class, an excess of the maximum permissible limit according to cadmium indicators
was found to be 32.35% ( 0.1 mg/kg), while exceeding the MPC for zinc and copper
indicators was not observed.
