Functional diagnostics of plants nutrition of spring barley treated with humic preparations in the conditions of organic agriculture

Abstract

The results of researches on studying of influence of humic preparations on provision of plants of spring barley with micro- and macroelements in critical phases of development in the conditions of organic agriculture are given. By researches of Ukrainian and foreign scientists have detected, that seed treatment and foliar fertilization with humic preparations stimulates the growth of the root system, significantly improves the formation process of photosynthetic surface of plants, accelerates development, increases productivity indicators, yielding, prevents various stresses and improves quality indicators of crop yield.
With the help of functional diagnostics that carried out in 2 phases of plants development- at the beginning of bushing and in the phase of tube emergence, detected, that the optimal by the needs of plants in nutrients were variants with pre-sowing seed treatment by "1r Seed Treatment" and double foliar fertilization "4r Foliar
Concentrate». Treatment with humic preparations promoted to the provision of barley plants with micro- and macroelements necessary for the harmonious development of barley plants in these periods. The most of all plants felt a nutrients deficiency on the control variants. Even pre-sowing seed treatment stimulated the growth and development of plants at the beginning of the vegetation and promoted to increasing of the percentage of digestibility of essential nutrients necessary for the development of barley. With the help of functional diagnostics, it was determined, that foliar fertilization of crops during leaf vegetation can quickly compensate the nutrient deficiencies in critical phases of the vegetating period, that, in turn, promotes to the grounding and formation of future yield, also increase the diseases resistance and unfavorable weather conditions.