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Anaerobic digestates from sewage sludge used as fertilizer on a poor alkaline sandy soil and on a peat substrate: Effects on tomato plants growth and on soil properties
- Publication Year :
- 2020
- Publisher :
- Elsevier, 2020.
-
Abstract
- Anaerobic digestates from sewage sludge (SSADs) are a by-product of the wastewater treatment process that still preserves a certain agronomic interest for its richness in plant nutrients and organic matter. Fertilizing properties of two liquid and two dewatered SSADs were tested on tomato plants (Solanum lycopersicum L.). Pot experiments were performed on sandy soil and peat substrate under greenhouse conditions with a SSADs application rate of 170 kg N/ha over a period of three months. Beneficial effects of SSADs were reported on different growth parameters, revealing an increase in biomass and height up to 37.5 and 6-folds over untreated control. No phytotoxic effect occurred on SSAD-exposed plants. Chemical analysis of soils treated with SSADs showed enrichment of macro- and micro-nutrients as well as organic matter. In some cases, the chemical characterization of leaves revealed an enhancement of uptaken macronutrients. This study contributed in general to deepen the knowledge on the short-term growing season fertilizing effects of SSAD. Despite the treatment dosage was calculated only on nitrogen requirements, the study highlighted the importance of the other nutrients and organic matter on plant growth.
- Subjects :
- Nutrient cycle
Environmental Engineering
Nitrogen
0208 environmental biotechnology
02 engineering and technology
010501 environmental sciences
Management, Monitoring, Policy and Law
engineering.material
01 natural sciences
Soil
Nutrient
Solanum lycopersicum
Sand
Tomato plants
Organic matter
Anaerobiosis
Lycopersicon esculentum
Fertilizers
Sewage sludge
Waste Management and Disposal
Waste management
0105 earth and related environmental sciences
2. Zero hunger
chemistry.chemical_classification
Soil organic matter
Nutrient recycling
Sewage
food and beverages
General Medicine
15. Life on land
6. Clean water
020801 environmental engineering
Agronomy
chemistry
Soil water
engineering
Environmental science
Sewage treatment
Fertilizer
Sludge
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....c8a6563eece280d60f42f6348735c097