Organic fertilization induces changes in soil nitrogen mineralization and enzyme activities

María Rosa Yagüe, Carmen Lobo and Pilar García
Additional contact information
María Rosa Yagüe: Agro-Environmental Department, Madrid Institute of Rural, Agricultural and Food Research and Development (IMIDRA), Alcalá de Henares, Madrid, Spain
Carmen Lobo: Agro-Environmental Department, Madrid Institute of Rural, Agricultural and Food Research and Development (IMIDRA), Alcalá de Henares, Madrid, Spain
Pilar García: Agro-Environmental Department, Madrid Institute of Rural, Agricultural and Food Research and Development (IMIDRA), Alcalá de Henares, Madrid, Spain

Plant, Soil and Environment, 2023, vol. 69, issue 1, 38-43

Abstract: In this study, we addressed the reuse of two organic waste products as fertilisers. To this end, soil fertilised with the spent mushroom substrate (SMS) or with an anaerobic digestate (DIG) was subjected to an incubation assay, and the results were compared with those from soil treated with a mineral fertiliser (MIN) and an unfertilised soil (CO). The soil was sampled after fertilisation and after 90 days of aerobic incubation. Nitrogen (N) mineralisation (NH4+ and NO3-) and oxidable carbon (OC) were determined. The impact of the treatments on the soil was evaluated by measuring the enzymatic activity of arylsulfatase (ARYL), ß-galactosidase (GAL), and urease (URE). The highest OC content was observed in the SMS treatment. After 90 days of incubation, the SMS treatment showed a lower mineral N content than the CO treatment. This finding was associated with N immobilisation. However, mineral N significantly increased ARYL activity in the DIG and MIN treatments, and URE activity was always higher at both sampling times in the SMS treatment. Initially, GAL activity was notably high in the DIG treatment but decreased after incubation, reaching similar values to those registered in the CO treatment. Organic fertilisation treatments induced different effects on soil N mineralisation, showing changes in the activity of the enzymes analysed.

Keywords: recycling; nutrients; organic residues; liquid anaerobic digestate; spent mushroom substrate of Pleurotus (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/274/2022-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/274/2022-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:69:y:2023:i:1:id:274-2022-pse

DOI: 10.17221/274/2022-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().