Effect of seed inoculation and foliar fertilizing on structure of soybean yield and yield structure in Western Polissya of Ukraine
¹National University of Life and Environmental Science, Department of Plant Science, Heroiv Oborony street 15, UA03041 Kyiv, Ukraine
²National University of Life and Environmental Science, Department of Fodder production, melioration, and meteorology, Heroiv Oborony street 13, UA03041 Kyiv, Ukraine
³Ukrainian Institute for Plant Variety Examination, Generala Rodimceva street 15, UA03041 Kyiv, Ukraine
Growing soybeans requires adjustment of micronutrient nutrition on poorly fertile soils. Foliar fertilization can overcome the deficiency of micronutrients in plants in the most important period. Three factorial field experiment to study foliar fertilization with complex micronutrients, seed inoculation by Bradyrhizobium japonicum in two soybean varieties (Kassidy and ES Mentor) was conducted. Foliar fertilization with Quantum oil and WUXAL Oilseed significantly increased certain elements in soybean yield structure. Fertilizer WUXAL Oilseed with a higher concentration of Mo, Mn and B more effectively increased the number of pods and seeds from the plant and formed a higher yield in soybeans. Foliar fertilization with WUXAL Oilseed and Quantum oil increased seed yield to 3.00 t ha-1 and 2.94 t ha-1, respectively in regard to variant without fertilizing, where yield was 2.71 t ha-1. Variety Kassidy had greater number of pods and seeds, seed weight in comparison to foliar fertilizing ES Mentor. Seed inoculation gave a stable increase in yield under different foliar fertilizations in varieties Kassidy and ES Mentor.