Total organic carbon content and transformation of selected soil properties as affected by different farming systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26296080%3A_____%2F21%3AN0000086" target="_blank" >RIV/26296080:_____/21:N0000086 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.frontiersin.org/" target="_blank" >https://www.frontiersin.org/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Total organic carbon content and transformation of selected soil properties as affected by different farming systems

Popis výsledku v původním jazyce

Soil carbon storage is an important function of terrestrial agroecosystems. Land uses are closely associated with changes in soil organic carbon stock and determine inputs of particular types of plants biomass (e.g. litter or fine roots). Land uses also strongly influence soil aggregation, physicochemical transformation processes, nutrients, water and thermal regimes of soil. The quality and amount of plant biomass significantly affect the biochemical processes, such as microbial activity, decomposition and nutrient cycling, binding and decomposition of hazardous substances and elements. Therefore, the maintenance of an appropriate land use system is particularly important for maintaining the productivity of the agroecosystems. The main objectives of this study were as follows: (1) to determine the effect of Norfolk crop rotation system and monoculture of spring barley (Hordeum vulgare L.); (2) to study the effect of conventional tillage and minimum tillage system and (3) to estimate three different straw management in monoculture of spring barley: SH – straw harvested; SI – straw incorporated; SB – straw burning. The changes of selected soil chemical properties, carbon content and humic substances quality were evaluated as the effects of the above-mentioned factors. The long-term field experiment was established in 1969 in Žabčice (South Moravia, Czech Republic) at the Experimental Stationary of Mendel University in Brno. The mean annual air temperature is 10.3 °C, and the mean annual precipitations are 491 mm. Gleyic Fluvisol Clayic was classified according to the IUSS Working Group WRB (2014). Total organic carbon content (TOC, %) was evaluated by the oxidimetric titration method. Content of humic substances, humic acids and fulvic acids were evaluated by the short fractionation method. The soil particle size analysis was determined by the pipette method. Soil reaction was measured in 1:2.5 suspension in distilled water and 1M KCl using Hanna pH meter. ANOVA analysis (program StatisticaCZ12 software) and post-hoc Fisher test (p≤0.05) were applied for data set evaluation. In this contribution, data received during the period 2017 – 2020 are discussed and evaluated. It was found out that anthropogenic influence in both types of farming led to soil aberration, which reflected a gradual decline of organic carbon and an increase in soil acidity. Higher negative aberration is documented in spring barley monoculture. There were no statistically significant differences between the straw managements variants and soil tillage systems in carbon content. Interaction between farming system and soil tillage was statistically significant. Organic carbon content was higher in the Norfolk crop rotation system with minimum tillage management.

Název v anglickém jazyce

Total organic carbon content and transformation of selected soil properties as affected by different farming systems

Popis výsledku anglicky

Soil carbon storage is an important function of terrestrial agroecosystems. Land uses are closely associated with changes in soil organic carbon stock and determine inputs of particular types of plants biomass (e.g. litter or fine roots). Land uses also strongly influence soil aggregation, physicochemical transformation processes, nutrients, water and thermal regimes of soil. The quality and amount of plant biomass significantly affect the biochemical processes, such as microbial activity, decomposition and nutrient cycling, binding and decomposition of hazardous substances and elements. Therefore, the maintenance of an appropriate land use system is particularly important for maintaining the productivity of the agroecosystems. The main objectives of this study were as follows: (1) to determine the effect of Norfolk crop rotation system and monoculture of spring barley (Hordeum vulgare L.); (2) to study the effect of conventional tillage and minimum tillage system and (3) to estimate three different straw management in monoculture of spring barley: SH – straw harvested; SI – straw incorporated; SB – straw burning. The changes of selected soil chemical properties, carbon content and humic substances quality were evaluated as the effects of the above-mentioned factors. The long-term field experiment was established in 1969 in Žabčice (South Moravia, Czech Republic) at the Experimental Stationary of Mendel University in Brno. The mean annual air temperature is 10.3 °C, and the mean annual precipitations are 491 mm. Gleyic Fluvisol Clayic was classified according to the IUSS Working Group WRB (2014). Total organic carbon content (TOC, %) was evaluated by the oxidimetric titration method. Content of humic substances, humic acids and fulvic acids were evaluated by the short fractionation method. The soil particle size analysis was determined by the pipette method. Soil reaction was measured in 1:2.5 suspension in distilled water and 1M KCl using Hanna pH meter. ANOVA analysis (program StatisticaCZ12 software) and post-hoc Fisher test (p≤0.05) were applied for data set evaluation. In this contribution, data received during the period 2017 – 2020 are discussed and evaluated. It was found out that anthropogenic influence in both types of farming led to soil aberration, which reflected a gradual decline of organic carbon and an increase in soil acidity. Higher negative aberration is documented in spring barley monoculture. There were no statistically significant differences between the straw managements variants and soil tillage systems in carbon content. Interaction between farming system and soil tillage was statistically significant. Organic carbon content was higher in the Norfolk crop rotation system with minimum tillage management.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

40101 - Agriculture

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů