Diagnosis of the functional state of transformed acid soils agroecosystems depending on long-term anthropogenic loads
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2021
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Abstrakt
The main priority of agro-industrial production has always been and remains to provide
the global population and its yearly increments with food. The issue of soil fertility improvement
is still the most important task of agricultural science. The assessment of the agroecological
condition of Albic Stagnic Luvisol using carbon dioxide emission, redox potential, and biotic
activity was carried out, based on modern methodological approaches, such as soil quality
evaluation via ecologically-related biological parameters. Carbone dioxide emission, redox, and
biological processes in long-term stationary experiment depend on the degree of soil acidity
reduction. Soil acidification can be minimized through chemical melioration with the combined
application of different doses of mineral fertilizers and manure. It was found that carbon dioxide
emission is optimal in an organo-mineral fertilizing system with application of 10 t of manure per
1 ha and N65Р68K68 with lime dose (2.5 t ha-1
) calculated according to pH buffering capacity. It is
due to oxidative and moderately oxidative conditions created. This organo-mineral fertilizing
system also increases the number of aerobic bacteria and overall biological activity. The mineral
fertilization and the use of Albic Stagnic Luvisol without fertilizers are accompanied by increased
mineralization, growth of reductive processes, and the number of moulds. Studies have shown
that it is advisable to include CO2 emission, redox potential and biological activity along with
physicochemical and agrochemical soil properties to assess the influence of different
anthropogenic loads on soil formation.
Kirjeldus
Received: March 6th, 2021 ; Accepted: June 11th, 2021 ; Published: June 22nd, 2021 ; Correspondence: olifir.yura@gmail.com
Märksõnad
acidity, Albic Stagnic Luvisol, CO₂ emission, fertilizers, liming, redox potential, microbiological activity, articles