Publications by authors named "Lotfi Khiari"
Incineration of municipal sludge and agri-food by-products generates large quantities of ash that can be used in agriculture as phosphorus fertilizer. The fertilizing potential of sludge incineration ash (SIA) from 12 cities in Canada and the United States was tested in a greenhouse experiment against a synthetic fertilizer (TSP: triple superphosphate), a natural fertilizer (RP: rock phosphate), and a control without any P fertilizer. Two soil types were used: clay and sandy loam.
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- Vibrational spectroscopy techniques like FTIR are valuable for analyzing soil due to their affordability, simple sample prep, and effective results.
- This study focused on optimizing the number of scans during FTIR data collection, discovering that increasing scans beyond 50 significantly enhances the similarity of the spectral results.
- The research also found that as the number of scans increased from 10 to 80, the predictive accuracy for key soil properties improved, evidenced by a higher correlation coefficient and a decrease in prediction error.
Byproducts can provide an important amount of nutrients for crops and improve soils properties. According to their C/N, nitrogen (N) mineralization or immobilization may be observed after their application onto agricultural land. Therefore, an indicator is needed to assess byproducts N availability for crops.
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