Shabbir G. The performance of oilseeds of the Brassicaceae family depending on the application of fertilizers under the conditions of the northeastern Forest Steppe of Ukraine

The thesis presents a theoretical generalization and a new solution to the scientific problem of optimizing the technology of cultivating mustard and spring rape under the conditions of the northeastern Forest Steppe of Ukraine. The technology is based on the study of integrated use of mineral fertilizers and foliar dressing. The influence of weather conditions on the peculiarities of growth, development, and formation of phytomass, photosynthetic activity, and performance depending on the variety and complex application of mineral fertilizers, and foliar feeding of brown, white, and black mustard and spring rape has been further developed. According to the research results, to obtain high productivity, economic and bioenergetic indicators of growing oilseeds of the Brassicaceae family in the northeastern Forest Steppe of Ukraine, the technology should provide N60P60K60 mineral fertilizers in combination with double foliar fertilization in 14–18 and 45–5– BBCH: for brown mustard Basfoliar 12-4-6 + S (6.0 l / ha) + Salyu Bor (3.0 l / ha) or Vuxal boron (3.0 l / ha) + Vuxal bioaminoplant l / ha); for white mustard Spectrum B + Mo (2.0 l / ha) + Spectrum Ascorist (3.0 l / ha); for black mustard Basfoliar 12-4-6 + S (6.0 l / ha) + Salyu Bor (3.0 l / ha), or Spectrum B + Mo (2.0 l / ha) + Spectrum Ascorist (3, 0 l / ha); for spring rape Vuxal boron (3.0 l / ha) + Vuxal bioaminoplant (3.0 l / ha).