Abstract
Introduction on drained peat soils of graingrass crop rotations had promoted relatively high microbiological activity of the plow layer, preservation of organic matter and had ensured the complete needs of cultures in mineral nitrogen. That ensures functioning of agro-ecosystems in conditions close to the natural ones. The intensive use of peat soils in tilled crop rotation leads to excessive microbiological activity and fast decomposition of the organic matter of peat deposits.
Highlights
To preserve the fertility and productivity of drained peat soils it is important to develop scientifically grounded crop rotation, selection and rational cropping sequence, regulation of the processes of organic matter mineralization taking into account the requirements of environmental protection
Biological activity of the soil is a combination of biological processes that occur in the soil as a result of life activity of soil microorganisms
The objective of our research was to study the orientation and intensity of microbiological processes in drained peat soils at their use in crop rotations compared with long-term meadows
Summary
Biological activity of the soil is a combination of biological processes that occur in the soil as a result of life activity of soil microorganisms. There are close links between the microbiota in the soil. Change of activity of population of one species affects the activity of the other. Cellulose-decomposing microorganisms, on the contrary, receive carbon from decomposed organic matter, but are dependent on external supply of nitrogen. Research has confirmed close interaction of the representatives of cellulose-decomposing and nitrogen fixing microorganisms in field conditions. In the soil with stubble, which is a substrate for the development of cellulosolithic bacteria and micromycetes, higher nitrogen activity is observed than in the soil without plant residues [5]. For optimal functioning of soil, and any other, ecosystem maintaining close relationships of microorganisms is necessary
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