Potential of developing podzolic soil-based potting media from wood ash, paper sludge and biochar.
Heavy metals
Hydrological properties
Paper mill wastes
Potting media
Soil amendments
Wood industry by-products
Journal
Journal of environmental management
ISSN: 1095-8630
Titre abrégé: J Environ Manage
Pays: England
ID NLM: 0401664
Informations de publication
Date de publication:
01 Jan 2022
01 Jan 2022
Historique:
received:
21
05
2021
revised:
18
09
2021
accepted:
20
09
2021
pubmed:
9
10
2021
medline:
4
11
2021
entrez:
8
10
2021
Statut:
ppublish
Résumé
Organic waste management in environmentally sustainable way is important not only to reduce the negative impacts on ecosystems but also valorizing the waste resources. Herein we evaluated the potential of wood ash (WA) and paper sludge (PS) wastes from a pulp and paper mill as potting media and their effects on the physicochemical properties of podzolic soil. WA, PS and biochar (BC) was mixed in different combinations with a sandy loam podzolic soil. Potting media treatments included: T1-soil (negative control); T2-Promix Potting media treatments expressed significant (p < 0.00) effects on pH, bulk density, total porosity, field capacity, plant available water (PAW) and water retention curves. Potting media amended with WA showed high pH range (8-12) while PS amendments exhibited pH in range where most plant nutrients are available (6.5-7.5). Results depicted significantly lower bulk density, and increased total porosity and water holding capacity of potting media amended with WA and PS. BC addition further enhanced the water retention properties compared to combinations without BC. T6, T10 and T11 produced higher amounts of PAW with desired pH compared to T1 and T2. WA, PS and BC showed high potential for developing podzolic soil-based potting media, but their effects on plant growth and elemental uptake need to be investigated.
Sections du résumé
BACKGROUND AND OBJECTIVES
OBJECTIVE
Organic waste management in environmentally sustainable way is important not only to reduce the negative impacts on ecosystems but also valorizing the waste resources. Herein we evaluated the potential of wood ash (WA) and paper sludge (PS) wastes from a pulp and paper mill as potting media and their effects on the physicochemical properties of podzolic soil.
METHODS
METHODS
WA, PS and biochar (BC) was mixed in different combinations with a sandy loam podzolic soil. Potting media treatments included: T1-soil (negative control); T2-Promix
RESULTS
RESULTS
Potting media treatments expressed significant (p < 0.00) effects on pH, bulk density, total porosity, field capacity, plant available water (PAW) and water retention curves. Potting media amended with WA showed high pH range (8-12) while PS amendments exhibited pH in range where most plant nutrients are available (6.5-7.5). Results depicted significantly lower bulk density, and increased total porosity and water holding capacity of potting media amended with WA and PS. BC addition further enhanced the water retention properties compared to combinations without BC. T6, T10 and T11 produced higher amounts of PAW with desired pH compared to T1 and T2.
CONCLUSION
CONCLUSIONS
WA, PS and BC showed high potential for developing podzolic soil-based potting media, but their effects on plant growth and elemental uptake need to be investigated.
Identifiants
pubmed: 34624579
pii: S0301-4797(21)01873-9
doi: 10.1016/j.jenvman.2021.113811
pii:
doi:
Substances chimiques
Sewage
0
Soil
0
Soil Pollutants
0
biochar
0
Charcoal
16291-96-6
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
113811Informations de copyright
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