OPTIMIZATION OF NO-TILL BIOLOGICAL COMPOSITE AGRARIAN TECHNOLOGY
Journal Title: Вісник Кременчуцького національного університету імені Михайла Остроградського - Year 2018, Vol 1, Issue 110
Abstract
Purpose. To study the peculiarities of the formation of the microbial complex structure formation and diversity different agricultural systems of the typical black earth and to justify the application of these measures to optimize the microbial cenosis of the soil in the No-Till system for the No-Till biotechnology development and implementation. Methodology. We used the field method (two-factor field experiment comparative evaluation of agricultural systems variants against the background of different variants of basic soil cultivation in crop rotation); laboratory methods: agrochemical (definition of basic soil physical and chemical indicators); microbiological (estimation of basic number of physiological groups and qualitative composition microbial complex); ecological (comparative characteristic of biodi-versity indices and microbiotic dominance); statistical (mathematical and statistical processing of experimental data). Results. The study of the microbial complex of typical black earth structure and diversity and the effect of microbiota on fertility has been carried out. It has been established that during the No-Till technology application there is a process of humification (an increase in humus of 0.15 % on average in one year) and the loss of organic matter due to the agrarian exploitation of black soil by traditional technology (humus reduction by 0.002 % over one year) in all samples. A high total amount of microorganisms of zero cultivation land was recorded (4.07.3 m/g of air-dry soil). An increase in the degree of microbiote enrichment was recorded on average by 7 % per 1 gram of air-dry soil, and lower values were established for soils with traditional cultivation technology (35 m/g air-dry soil), where the degree of microbiote enrichment decreased by an average of 2.5 % in all trials. A high total amount of microalgae in soil samples was found, that were selected in areas where No-Till agrobiotechnology (900 thousand –1,5 million cells/1 g) is used. In samples taken at sites with traditional agrotechnology quantitative indicators of microalgae content (320460 thousand cells/g) are significantly inferior to No-Till biotechnology. Originality. For the first time a complex evaluation of the characteristics of the formation of the humus layer of typical horizons was conducted and the dependence of the number of microorganisms and microalgae of the farm on the territory of the Semeniv district of the Poltava region from the system of agriculture was established. Practical value. The obtained data on the peculiarities microbial complex formation of the quantitative, qualitative structure and the typical microbial processes orientation are of practical importance for agrarian production in the selection of the agricultural system. References 12, figures 4, table 2.
Authors and Affiliations
О. Novokhatko, Т. Kozlovs’ka, А. Pasenko
Keywords
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- EP ID EP659966
- DOI 10.30929/1995-0519.2018.3.92-96
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