The perennial grass giant reed (Arundo donax L.) has been proposed as a promising biomass energy crop in southern Europe. The aim of this study was to investigate the effects of two fertilisation levels (F = 200–80–200 N–P–K kg ha−1; UF = 0–0–0 N–P–K kg ha−1) and two harvest times (A: autumn, W: winter) on the biomass quality of giant reed as a solid fuel for combustion. Different aged crops grown in central Italy (latitude 43◦40 N, and longitude10◦19 E) in the period of 1996–2005 were collected and analysed. Our results confirmed that giant reed biomass is characterized by a high content of ash and silicon. Giant reed showed an increase in ash content from F to UF and from A to W. The production of biomass from fertilised crops harvested in the autumn may thus be a good method for reducing the ash content by about 20%. The results also showed an improvement in biomass combustion quality in 10-year-old crops due to a lower ash content and higher SiO2/K2O and CaO/K2O ratios, which could contribute to a lower slagging tendency. This research should help to improve our knowledge of the chemical composition of giant reed and presents possible agronomic strategies to combine a high biomass yield with good combustion quality.
|Autori interni:||ANGELINI, LUCIANA GABRIELLA|
|Autori:||NASSI O DI NASSO N.; ANGELINI L.G.; BONARI E.|
|Titolo:||Influence of fertilisation and harvest time on fuel quality from giant reed (Arundo donax L.) biomass produced in southern Europe|
|Anno del prodotto:||2010|
|Digital Object Identifier (DOI):||10.1016/j.eja.2009.12.001|
|Appare nelle tipologie:||1.1 Articolo in rivista|