Effect of carbon-enriched digestate on the microbial soil activity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26296080%3A_____%2F21%3AN0000020" target="_blank" >RIV/26296080:_____/21:N0000020 - isvavai.cz</a>
Alternative codes found
RIV/62156489:43210/21:43920017 RIV/62156489:43410/21:43920017 RIV/00216305:26310/21:PU142696
Result on the web
<a href="https://doi.org/10.1371/journal.pone.0252262" target="_blank" >https://doi.org/10.1371/journal.pone.0252262</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1371/journal.pone.0252262" target="_blank" >10.1371/journal.pone.0252262</a>

Result language
angličtina
Original language name
Effect of carbon-enriched digestate on the microbial soil activity
Original language description
As a liquid organic fertilizer used in agriculture, digestate is rich in many nutrients (i.e. nitrogen, phosphorus, sulfur, calcium, potassium); their utilization may be however less efficient in soils poor in organic carbon (due to low carbon:nitrogen ratio). In order to solve the disadvantages, digestate enrichment with carbon-rich amendments biochar or humic acids (Humac) was tested. Soil variants amended with enriched digestate: digestate + biochar, digestate + Humac, and digestate + combined biochar and humic acids—were compared to control with untreated digestate in their effect on total soil carbon and nitrogen, microbial biomass carbon, soil respiration and soil enzymatic activities in a pot experiment. Yield of the test crop lettuce was also determined for all variants. Soil respiration was the most significantly increased property, positively affected by digestate + Humac. Both digestate + biochar and digestate + Humac significantly increased microbial biomass carbon. Significant negative effect of digestate + biochar (compared to the control digestate) on particular enzyme activities was alleviated by the addition of humic acids. No significant differences among the tested variants were found in the above-ground and root plant biomass.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
40101 - Agriculture

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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