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

Result code in 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>

Alternative codes found

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

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40104 - Soil science

Project

<a href="/en/project/TH04030132" target="_blank" >TH04030132: Application Systems of Liquid Organic Fertilizers as the Means to Improve Soil Environment, Enhance Nutrient Utilization by Plants and Minimize Environmental Impacts</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Agronomy

ISSN

2073-4395

e-ISSN

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Volume of the periodical

12

Issue of the periodical within the volume

7

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

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UT code for WoS article

000832078900001

EID of the result in the Scopus database

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