Determination of Plant-Available Nutrients in Two Wood Ashes: the Influence of Combustion Conditions

0463254 - ÚSMH 2017 RIV US eng J - Journal Article
Perná, Ivana - Ochecová, P. - Száková, J. - Hanzlíček, Tomáš - Tlustoš, P.
Determination of Plant-Available Nutrients in Two Wood Ashes: the Influence of Combustion Conditions.
Communications in Soil Science and Plant Analysis. Roč. 47, 13/14 (2016), 1664-1674. ISSN 0010-3624. E-ISSN 1532-2416
R&D Projects: GA MZe QI102A207
Institutional support: RVO:67985891
Keywords : combustion condition * crystal phases * fertilizer * plant-available nutrients * wood ash
Subject RIV: DM - Solid Waste and Recycling
Impact factor: 0.589, year: 2016

Wood ashes were traditionally used as a fertilizing agent from very beginning of working land but the fertilizing quality varies according to the combusted biomass and also to the industrial burning equipment. The differences between wood ash originated from fluid and classic boiler were investigated by X-ray powder diffraction (XRD), X-ray fluorescence spectrometry (XRF), differential thermal analysis (DTA), thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), and Mehlich 3 and deionized water extraction procedures in relation to extraction time. The results, especially of the SEM and chemical extractions, have demonstrated that the type of burning boiler determines the portions of the leachable nutrient elements. The silica and alumina ash content conducted by the elevated temperature transforms the main proportion of calcium and potassium into the insoluble feldspars. Due to this effect only small amount of nutrients could be released and served as a fertilizing matter.
Permanent Link: http://hdl.handle.net/11104/0262517