Deciphering the effectiveness of humic substances and biochar modified digestates on soil quality and plant biomass accumulation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26788462%3A_____%2F22%3AN0000012" target="_blank" >RIV/26788462:_____/22:N0000012 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43210/22:43921722 RIV/26788462:_____/22:N0000013 RIV/00216305:26310/22:PU147177 RIV/00216208:11310/22:10445699

Výsledek na webu

<a href="https://www.mdpi.com/2073-4395/12/7/1587" target="_blank" >https://www.mdpi.com/2073-4395/12/7/1587</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/agronomy12071587" target="_blank" >10.3390/agronomy12071587</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Deciphering the effectiveness of humic substances and biochar modified digestates on soil quality and plant biomass accumulation

Popis výsledku v původním jazyce

The effective use of digestate as exogenous organic matter to enhance soil carbon sequestration depends on the balance between labile and recalcitrant organic carbon, which is influenced by the type of feedstock, the fermentation process, and the fraction (liquid, solid) of the fermented product used. In this work, in order to change the ratio of labile to stable carbon in the resulting fertiliser, the digestate was mixed with organic carbon-rich supplements: biochar and Humac (a humic acid-rich substance). The pot experiment was carried out under controlled conditions with maize (Zea mays L.) in soil amended with the digestate (D), which was incubated with Humac (H), biochar (B), or a combination of both (D + B + H) before the application. Digestate enriched with Humac showed improved short-term nutrient (carbon, phosphorus, nitrogen) transformation, as indicated by soil enzyme activity and the highest maize biomass production of. Total carbon content, C:N ratio, short-term respiration activity, and nitrification were most enhanced by digestate enriched with either biochar or combined biochar + Humac). Long-term nitrogen mineralization was mostly enhanced by digestate + Humac, as indicated by amino-acid-induced respiration and urease activity. Short-term positive effects of digestate + biochar (eventually + Humac) on catabolism were proven, whereas their long-term effects on nutrient mineralization were negative (i.e., biochar-mediated immobilization, sequestration), which should be the focus of further research in future.

Název v anglickém jazyce

Deciphering the effectiveness of humic substances and biochar modified digestates on soil quality and plant biomass accumulation

Popis výsledku anglicky

The effective use of digestate as exogenous organic matter to enhance soil carbon sequestration depends on the balance between labile and recalcitrant organic carbon, which is influenced by the type of feedstock, the fermentation process, and the fraction (liquid, solid) of the fermented product used. In this work, in order to change the ratio of labile to stable carbon in the resulting fertiliser, the digestate was mixed with organic carbon-rich supplements: biochar and Humac (a humic acid-rich substance). The pot experiment was carried out under controlled conditions with maize (Zea mays L.) in soil amended with the digestate (D), which was incubated with Humac (H), biochar (B), or a combination of both (D + B + H) before the application. Digestate enriched with Humac showed improved short-term nutrient (carbon, phosphorus, nitrogen) transformation, as indicated by soil enzyme activity and the highest maize biomass production of. Total carbon content, C:N ratio, short-term respiration activity, and nitrification were most enhanced by digestate enriched with either biochar or combined biochar + Humac). Long-term nitrogen mineralization was mostly enhanced by digestate + Humac, as indicated by amino-acid-induced respiration and urease activity. Short-term positive effects of digestate + biochar (eventually + Humac) on catabolism were proven, whereas their long-term effects on nutrient mineralization were negative (i.e., biochar-mediated immobilization, sequestration), which should be the focus of further research in future.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

40104 - Soil science

Projekt

<a href="/cs/project/TH04030132" target="_blank" >TH04030132: Systémy aplikace tekutých organických hnojiv jako prostředek ke zlepšení půdního prostředí, zvýšení využitelnosti živin rostlinami a jako prostředek k minimalizaci dopadů na životní prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Agronomy

ISSN

2073-4395

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000832078900001

EID výsledku v databázi Scopus

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