Abstract:
It is proved that application of high rates of mineral fertilizers to the southern chernozem of Yelanets district of Mykolaiv region without application of multifunctional growth regulating agents is ineffective. To increase their effectiveness, it is necessary to comprehensively treat the sunflower sowing with the agents that, firstly, can ensure prolongation of the photosynthetic activity of the leaf apparatus; secondly, increase the content of the total chlorophyll in the leaves with the predominant growth of the fraction "a"; thirdly, intensify the development and functioning of the root system. The result is an increase in the crop yield level with a clearly expressed synergetic effect of the impact factors against the background of the oily raw materials quality preservation.
