Long-term application of biogas digestate improves soil physical properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F23%3A10168783" target="_blank" >RIV/00025798:_____/23:10168783 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00027006:_____/23:10176158

Výsledek na webu

<a href="https://doi.org/10.1016/j.still.2023.105715" target="_blank" >https://doi.org/10.1016/j.still.2023.105715</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.still.2023.105715" target="_blank" >10.1016/j.still.2023.105715</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long-term application of biogas digestate improves soil physical properties

Popis výsledku v původním jazyce

Rapid recent increase in biogas plants has inspired heightened interest in agricultural digestate use. This paper investigates the long-term effect of digestate application on soil physical, chemical and mineralogical properties, and compares it with the results of mineral fertiliser and compost use. The research was initiated in 2011 as a long-term field experiment at three Czech Republic sites. The field management comprised conventional tillage with 6-year crop rotation. The following five treatments were evaluated; unfertilised control, mineral fertiliser with 27% nitrogen, digestate I comprising corn silage and cattle slurry, digestate II composed of corn silage, pig slurry, farmyard manure and hay, and finally compost. Each treatment was replicated four times in the three sites, and soil samples were collected for analysis twice a year from 2018 to 2021. Statistically significant correlations were established between the stability of 1-2 mm soil aggregates and soil characteristics. The correlation coefficient was 0.37 for total organic carbon; 0.45 for total organic nitrogen; 0.36 for hot water extractable carbon; -0.54 for bulk density; 0.57 for porosity and 0.38 for water infiltration. Although treatments did not affect mineralogical properties, the soil aggregate stability was significantly increased by compost and digestate organic fertilisers; with the highest 36.47% average on plots with digestate II and the lowest 26.22% on the control and 26.1% on mineral fertilised plots. Organic fertiliser addition also significantly decreased soil bulk density and increased porosity, with a larger proportion of capillary pores. Finally, although digestate application did not improve soil organic matter as significantly as compost, its long-term use positively affected soil physical properties and water infiltration.

Název v anglickém jazyce

Long-term application of biogas digestate improves soil physical properties

Popis výsledku anglicky

Rapid recent increase in biogas plants has inspired heightened interest in agricultural digestate use. This paper investigates the long-term effect of digestate application on soil physical, chemical and mineralogical properties, and compares it with the results of mineral fertiliser and compost use. The research was initiated in 2011 as a long-term field experiment at three Czech Republic sites. The field management comprised conventional tillage with 6-year crop rotation. The following five treatments were evaluated; unfertilised control, mineral fertiliser with 27% nitrogen, digestate I comprising corn silage and cattle slurry, digestate II composed of corn silage, pig slurry, farmyard manure and hay, and finally compost. Each treatment was replicated four times in the three sites, and soil samples were collected for analysis twice a year from 2018 to 2021. Statistically significant correlations were established between the stability of 1-2 mm soil aggregates and soil characteristics. The correlation coefficient was 0.37 for total organic carbon; 0.45 for total organic nitrogen; 0.36 for hot water extractable carbon; -0.54 for bulk density; 0.57 for porosity and 0.38 for water infiltration. Although treatments did not affect mineralogical properties, the soil aggregate stability was significantly increased by compost and digestate organic fertilisers; with the highest 36.47% average on plots with digestate II and the lowest 26.22% on the control and 26.1% on mineral fertilised plots. Organic fertiliser addition also significantly decreased soil bulk density and increased porosity, with a larger proportion of capillary pores. Finally, although digestate application did not improve soil organic matter as significantly as compost, its long-term use positively affected soil physical properties and water infiltration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40101 - Agriculture

Projekt

<a href="/cs/project/QK1810186" target="_blank" >QK1810186: Zlepšení stability půdní struktury a zvýšení infiltrace pomocí agrotechnických postupů</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

SOIL &amp; TILLAGE RESEARCH

ISSN

0167-1987

e-ISSN

1879-3444

Svazek periodika

231

Číslo periodika v rámci svazku

231

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

—

Kód UT WoS článku

000981040100001

EID výsledku v databázi Scopus

2-s2.0-85152122125