Open AccessTRENDS IN BIOLOGICAL PROCESSES IN LEACHED CHERNOZEM UNDER CULTIVATION OF SPRING BARLEY WITH VARIOUS SPECIES AND RATES OF FERTILIZERS
Author(s) -
V. V. Volkohon,
O. V. Pyrih O. V. Pyrih,
T. Yu. Brytan
Publication year - 2017
Publication title -
sìlʹsʹkogospodarsʹka mìkrobìologìâ
Language(s) - English
Resource type - Journals
ISSN - 1997-3004
DOI - 10.35868/1997-3004.26.3-12
Subject(s) - chernozem , mineralization (soil science) , manure , agronomy , straw , environmental science , denitrification , microorganism , green manure , fertilizer , chemistry , environmental chemistry , nitrogen , soil water , biology , soil science , genetics , organic chemistry , bacteria
The influence of the aftereffects of organic fertilizers and direct action of minerals on thedevelopment of microorganisms of nitrogen and carbon cycles, as well as the course of individualbiological processes has been investigated in the process of growing spring Ii the field stationaryexperiment on the leached chernozem. In the first year of aftereffect of organic fertilizers in the form ofmanure, straw, lupine green manure, and their combination, the activation of soil biota occurs and thecorrelation between the number of different groups of microorganisms changes. Application ofmineral fertilizers in high rate (N90P90K90) leads to the active development of denitrifiers, stimulationof biological denitrification, restriction of functional activity of diazotrophs, growth of the coefficientof mineralization of organic substance. However, the use of this dose in the background after theorganic fertilizer (straw + green manure) helps to optimize the flow of biological processes in the soil.At the same time, the specified rate of mineral fertilizers becomes environmentally acceptable. Theconclusion is made about the inadmissibility of the use of solid fertilizers under deficiency of organicsubstance in the soil.