THE DEPENDENCE OF THE FRIABILITY OF SPRING BREWING BARLEY ON THE EFFECTS OF FOLIAR NUTRITION
DOI:
https://doi.org/10.31395/2310-0478-2020-1-6-10Keywords:
spring barley, mineral fertilizers, micro fertilizers, foliar plant nutrition, friabilityAbstract
The purpose of the research was to determine the dependence of the brewing quality of spring barley on the parameters of friability on the effects of foliar nutrition of plants during vegetation by «Wuxal» microfertilizers on different backgrounds of mineral fertilizers.In the case of two- and three-fold combined foliar nutrition of barley plants during the vegetation with «Wuxal» microfertilizers, the improvement of the friability value by 1.3 – 3.8 % was established.The efficiency of foliar nutrition of spring barley plants by microfertilizers «Wuxal» depended on the technological scheme of application, ie on the number of receptions of the conducted agro-measure during the development phases – tillering, stem elongation, flowering.When growing barley on the background of mineral nutrition N30P45K45, the variants two times application of microfertilizers were the best – «Wuxal Р Max» 1.5 l/ha during the tillering and «Wuxal Grain» 1.5 l/ha at the beginning of flowering and «Wuxal Grain» 1,5 l/ha during stem elongation and «Wuxal Grain» 1.5 l/ha at the beginning of flowering, where the friabil- ity values were 83.3 % and 84.7 %, respectively. Three-fold foliar nutrition of plants with microfertilizers – «Wuxal Р Max» 1.5 l/ha during the tillering, «Wuxal Grain» 1.5 l/ha during stem elongation and «Wuxal Grain» 1.5 l/ha at the beginning of flowering provided the highest value of the friability 85.8 %.On the background of mineral nutrition N60P90K90 there were also the best variants of two times applications of microfertilizers – «Wuxal Р Max» 2.0 l/ha during the tillering and «Wuxal Grain» 2.0 l/ha at the beginning of flowering and «Wuxal Grain» 2.0 l/ha during stem elongation and «Wuxal Grain» 2.0 l/ha at the beginning of flowering, where the friability values were 82.3 % and 83.1 %, respectively. Variant of three-fold foliar fertilization of plants with microfertilizers – «Wuxal Р Max» 2.0 l/ha during the tillering, «Wuxal Grain» 2.0 l/ha during stem elongation and «Wuxal Grain» 2.0 l/ha at the beginning of flowering provided the highest value of friability 84.2 %.
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