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Short-term effects on soil properties and wheat production from secondary paper sludge application on two Mediterranean agricultural soils
- Source :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP
- Publication Year :
- 2007
-
Abstract
- This study was conducted under greenhouse conditions to evaluate the potential use of SPS as a fertilizer, amendment and/or liming agent for wheat (Triticum aestivum L.). Two representative Mediterranean agricultural soils, a Cambic Arenosol (cmAR) and a Cromic Cambisol (crCM) were used. Treatments included four sludge rates ranging from 0 to 40 g kg−1 (equivalent of 0, 38, 88 and 120 Mg ha−1). A significant increment in soil pH, organic carbon, N total, available P and exchangeable K were observed in both soils. Sludge application significantly increased N and decreased Zn, Mn and Cu concentrations in wheat. Wheat grain yields were reduced by 33% and 37% when 120 Mg SPS ha−1 was applied to cmAR and crCM soils, respectively, due apparently to unavailability of Mg. However, straw yields, with much lower Mg requirements, increased significantly with SPS rates. Secondary pulp mill sludge seems to be a potential source of organic matter, N, P, K and a potential soil amendment liming agent for acid soils, when appropriate supplemental fertilizer was provided. For grain crops grown in these soils, addition of Mg is required for proper nutrient balance.
- Subjects :
- Paper
Environmental Engineering
Time Factors
Nitrogen
Amendment
Bioengineering
secondary paper mill sludge
engineering.material
Soil
Soil pH
Organic matter
Waste Management and Disposal
Triticum
chemistry.chemical_classification
Cambisol
Sewage
Renewable Energy, Sustainability and the Environment
Mediterranean Region
Agriculture
General Medicine
Straw
Hydrogen-Ion Concentration
Carbon
Ion Exchange
Agronomy
chemistry
Mediterranean soils
wheat fertilization
Soil water
engineering
Environmental science
Fertilizer
Sludge
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 99
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Bioresource technology
- Accession number :
- edsair.doi.dedup.....5bb235d8e9fcfbd9f136fd4c266ef799