Category Archives: Recycling of Biomass Ashes

Effect on Soil Biological Parameters

Effect on Soil Microorganisms Heterotrophic organisms in the soil are ultimately responsible for ensuring the availability of nutrients for primary production (Wardle 2002). Microorganisms play a very important role in many biogeochemical cycles in agroecosystems including organic matter decomposition, nutrient mineralization, and trace gas emission and consumption (Carney et al. 2004). The principal “players” in the decomposition process are microorganisms, […]

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Wood Ash Composition

Although carbon (C) is mostly oxidised and nitrogen (N) is emitted in the form of gaseous compounds during combustion, most other elements present in the plant material are retained in the ash (Steenari et al. 1999). Wood ash mainly consists of calcium, potassium, magnesium, silicon, aluminium, phosphorus, sodium, manga­nese and sulphur, whereas it is N-deficient. Trace elements found in wood […]

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Phosphorus Fertilizing Effects of Biomass Ashes

Katja Schiemenz, Jurgen Kern, Hans-Marten Paulsen, Silvia Bachmann, and Bettina Eichler-Lobermann Abstract The reutilization of biomass ashes in agriculture is important to create nutrient cycles. In field and pot experiments we investigated the fertilizing effects of different biomass ashes (rape meal ash, straw ash, and cereal ash) for eight different crops on a loamy sand and a sandy loam. Special […]

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Cropping Systems

Decay of organic matter, inappropriate use of nitrogenous fertilizers, and the removal of alkaline plant material from the field in cropping systems further accelerate soil acidification (Vieira et al. 2008). Some studies have shown that legumes increase soil acidification in pastures and arable cropping systems (Williams 1980; Burle et al. 1997). Acid production during carbon and nitrogen cycles is considered […]

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Civil Works and Landfills

11.4.1 Landfills and Mining Waste Deposits Combustion residues are used to provide a barrier against the penetration of water or oxygen, or both, into the body of the landfill or of the heap or impoundment of mining waste. The properties that make fly ash from solid biofuels suitable are their high pH and their self-binding properties. The potential for use […]

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Effects on Soil Fauna

The relative contributions of the soil fauna to microbial turnover and nutrient mineralization are directly related to the demographics of the soil biota (Coleman et al. 1983). Many invertebrates (e. g., earthworms, termites, and ants) play an important role for soil fertility; they produce macropores (e. g., galleries, chambers) and organomineral structures that influence hydraulic properties, macroaggre­gation, and organic matter […]

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