Agriculture and forestry

Telekalo Nataliia – Candidate of Agricultural Sciences, Associate Professor of the Department of Plant Production, Selection and Bioenergetic Cultures, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna St. 3, e-mail: nataliiatelekalo@gmail.com).

Melnyk Maryna – postgraduate student of Plant Production, Selection and Bioenergetic Cultures of Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna St. 5). 

The publication highlights the results of studies examining the effect of pre-sowing seed treatment, the timing and combination of the introduction of growth stimulants and microfertilizers in crops on the passage of phases of growth and development of alfalfa sowing. The properties of plants in agrophytocenoses are determined by their genetic characteristics and environmental factors that affect the body. The biological peculiarities of alfalfa sowing, the basic regularities of its growth and development, namely the passage of the vegetation phases, the evaluation of the crop, which made it possible to develop methods of cultivation technology, taking into account the biology of plants to change climatic conditions. The processes of growth, development of alfalfa of the Sinyukh cultivar, depending on the seed treatment with the growth stimulants of Lucis and Saprohum and foliar fertilizers during the vegetation period of plants, were investigated. The peculiarities of the phases of growth and development of alfalfa plants in the sowing year in comparison with the growth and development of the second and subsequent years of vegetation are determined. The influence of ecological conditions of the environment - the temperature of vegetation renewal, the accumulation of the sum of active temperatures, on the growth and development of alfalfa of the second and subsequent years of vegetation has been established.

It was established that the earliest attainment of seeds was characterized by the variant of sowing with a stimulator of Lucyse growth in the branching and budding phase + fertilizing the sowing in the budding phase with microfertilizers Harvesting beans – on the 155th day of vegetation with the accumulation of the sum of active temperatures of 1945 ºС. The influence of pre-sowing seed treatment of alfalfa cultivar Sinyukh in all phases of growth and development and dynamics of accumulation of active temperatures during the growing season were evaluated.

As a result of the research, new technological regulations for the use of bio-organic preparations and components in the technological scheme of growing alfalfa sowing have been developed. The research results are aimed at solving actual problems of technological renewal and development of agro-industrial complex on the basis of development of bioorganic models of varietal technology of cultivation of alfalfa sowing with orientation at the level of adequate arable productivity and climate fertility.

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