QUANTITATIVE COMPOSITION THE MICROORGANISMS OF RHIZOSPHERE AGRICULTURAL PLANTS

Iryna Beznosko,Tetyana Gorgan,Iryna Mosiychuk

doi:10.36074/grail-of-science.24.09.2021.24

Abstract

During 2020, on the basis of stationary and temporary field experiments, which are located in the Skvуra Research Station of Organic Production of NAAS, Nosiv SDS and the Institute of Vegetable and Melon NAAS were studied quantitative composition of the soil micromycetes under different agricultural crops: winter wheat, spring barley and onion. The vegetation period in the Kyiv region was characterized by – sufficiently moist (HTC 1,7), and in Chernihiv and Kharkiv regions drought prevailed (HTC 0,6). Adverse weather conditions such as drought or waterlogging are crucial factors in changing the number of mycobiomes in the studied soils.Stationary field experiments in the selection Nosivka during the ontogenesis winter wheat characterized the greatest number pedatrophic and less number of amylolytic, cellulosolytic ecological-trophic groups. The stationary experiments field researches were also conducted in Skvyra Research Station of Organic Production. Where the rhizosphere soil under spring barley crops is characterized by a larger number of micromycetes, as well as amylolytic and cellulolytic ecological-trophic groups. Was determined the number of soil micromycetes the main ecological and trophic groups. The rhizosphere soil on the stationary field of the Institute of Vegetable and Melon NAAS during the ontogenesis of different varieties of onions characterized by high number cellulosolytic group of micromycetes, which despite the decrease in the hydrothermal coefficient increased by the end of the growing season of the culture.Therefore, the interaction between plants and micromycetes is a dynamic process in which the hydrothermal coefficient during the growing season, soil type, and the root system of agricultural plants, this influences the formation of soil mycobiome.

Highlights

More and more often the relevance and necessity of biological monitoring and justification is confirmed, namely the study of biological diversity and Авторські права захищені | Creative Commons Attribution 4.0 International LicenseSECTION IX
Based on stationary field experiments located in Nosivka selection research station, it was determined the micromycetes number of the main ecological and trophic groups in the soil during the ontogenesis winter wheat varieties Knyazhna, Yuvivata Synthetic
At all phases of ontogenesis in the rhizosphere winter wheat were characterized by the largest number of pedatrophic groups of micromycetes ranging from 14 to 19 million colony-forming units (CFU) / soil depending on the variety

Summary

Introduction

More and more often the relevance and necessity of biological monitoring and justification is confirmed, namely the study of biological diversity and Авторські права захищені | Creative Commons Attribution 4.0 International LicenseSECTION IX. The microbiota is one of the factors of the soil-forming process. Soil fertility depends on the activity and soil microorganisms, as the microbiota actively functions and forms the upper soil horizon, which concentrates the largest reserves of organic forms and nutrients [1]. The theoretical bases of microbiocoenoses soil structure formation and functioning were stated in the research of Ukrainian scientists K. Soil microbiota is one the most important factors that determines the formation processes and biological properties of soil, and is a complex of microbiological system, according to V. Microbial groups mainly determine soil fertility, growth, and development of agricultural plants, participating in such important processes as the transformation of plant residues and humus formation, providing the plant with nutrients and the nutrient cycle [5]

Objectives

Methods

Results

Conclusion