Abstract:

The research aims to establish the influence of foliar fertilization of spring barley plants with microfertilizers "Wuxal" during the growing season under different backgrounds of mineral fertilizers on the yield and physiological quality of grain. The following methods were used to generalize the results of the research and scientific substantiation of the purpose: general scientific (to determine the direction of research, planning, and bookmarking the experiment); special (laboratory-to determine physiological parameters); mathematical and statistical (for processing experimental data). The effectiveness of the effect of foliar fertilization of spring malting barley plants with microfertilizers "Wuxal" during the growing season the yield and the physiological quality of grain in terms of energy and ability to germination capacity has been established. When growing barley on the background of mineral nutrition N30P45K45, the best variants were two-timed application of microfertilizers "Wuxal Grain" 1.5 L/ha during stem elongation and "Wuxal Grain" 1.5 L/ha at the beginning of the flowering phase and three-times foliar nutrition of plants with microfertilizers "Wuxal Max" 1.5 L/ha during the tillering phase, "Wuxal Grain" 1.5 L/ha during stem elongation and "Wuxal Grain" 1.5 L/ha at the beginning of the flowering phase, where germination energy was 98.2% and 98.7%, and grain germination ability was 98.8% and 98.9%, respectively. Against the background of mineral nutrition N60P90K90 variants for double application of microfertilizers were also the best "Wuxal Grain" 2.0 L/ha during stem elongation and "Wuxal Grain" 2.0 L/ha at the beginning of the flowering phase and three-times foliar nutrition of plants with microfertilizers "Wuxal Max" 2.0 L/ha during the tillering phase, "Wuxal Grain" 2.0 L/ha during stem elongation and "Wuxal Grain" 2.0 L/ha at the beginning of the flowering phase, where the germination energy was 97.8% and 98.0%, and the ability to germinate grain -97.9% and 98.1%, respectively.

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