Residues from renewable energy production: Their value for fertilizing pastures

Bougnom, Blaise Pascal; Niederkofler, C.; Knapp, Brigitte A.; Stimpfl, E.; Insam, Heribert

doi:10.1016/j.biombioe.2012.01.017

Cited by 78 publications

(57 citation statements)

References 25 publications

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“…In previous studies, ash addition to soils has had a positive impact on plant growth (Pérez-Cruzado et al 2010;Bougnom et al 2012;Materechera 2012;Moilanen et al 2012;Saarsalmi et al 2012). However, in our study, increasing ash concentrations in the soil decreased overall plant performance; for example, at the 1.0% ash treatment, and under non-flooded conditions, the Dawn cultivars died.…”

Section: Discussioncontrasting

confidence: 64%

“…Wood ash, the solid by-product of wood incineration, has several proven beneficial effects on soils, such as an increase in soil pH and added nutrient value (Bougnom et al 2009(Bougnom et al , 2012Klemedtsson et al 2010;Pérez-Cruzado et al 2010;Arshad et al 2012;Saarsalmi et al 2012;Podmirseg et al 2013). This has been shown, in some cases, to lead to improved crop productivity (Pérez-Cruzado et al 2010;Bougnom et al 2012;Materechera 2012;Moilanen et al 2012;Saarsalmi et al 2012). Wood ash can contain, amongst a range of macro-nutrients (i.e.…”

Section: Introductionmentioning

confidence: 99%

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The Impacts of Applying Metal(loid) Enriched Wood Ash to Soils on the Growth and Elemental Accumulation of Rice

et al. 2018

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The mobility and uptake of phosphorus, manganese, arsenic, copper, zinc and several other heavy metal(loid)s to rice shoots and grains were measured under controlled irrigation [flooded and non-flooded] conditions in a pot experiment. Doses of 0.1-1% (w:w) of a metal(loid)-rich wood ash containing ≤ 13,000 mg kg −1 phosphorus, manganese, arsenic, copper and zinc were applied to a study soil to determine the impacts of the ash on rice grain quality and the fate of metal(loid)s. Pore water and rice shoots and grains were analysed for beneficial and toxic elements derived from the ash, and Food-chain exposure modelling was applied to the experimental data thereafter to predict risk of onward impacts to human health. Concentrations of phosphorus and manganese in pore water increased with ash addition, though this did not enhance grain phosphorus or manganese. Zinc mobility was largely reduced over the course of the experiment, but appeared unrelated to ash dose. Arsenic presented the greatest mobility in pore water of all measured metal(loid)s (~ 2500 µg l −1 ), with shoot concentrations displaying clear dose and irrigation response. Although rice concentrations of arsenic in grain were the lowest of all measured metal(loid)s, risk-modelling of the data showed that even a 0.1% addition of the study ash to soil could expose a high rice consuming cohort to a vastly increased probability of deleterious health impacts. Whilst it is unlikely that contaminated ash would be knowingly applied to land, this study highlights that even singular applications of metal(loid) rich ash to agricultural soils could have negative effects on crops and forward impacts to human health. Other application scenarios, whereby lesser contaminated ashes are repeatedly applied to soils, warrant further work with regard to potential risks of accumulated metal(loid)s entering the food chain.

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Section: Discussioncontrasting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

The Impacts of Applying Metal(loid) Enriched Wood Ash to Soils on the Growth and Elemental Accumulation of Rice

et al. 2018

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“…In line with this, previous findings showed that the AD of animal slurries improved their fertilizer value [3], thereby leading to an increased forage yield and N uptake relative to raw liquid swine manure and mineral fertilizers [121]. Bougnom et al [122] found a 20% increase in grass yield compared to conventional manure. Liedl et al [123] also found that digested poultry litter resulted in similar or superior grass and vegetable yields versus N fertilizers.…”

Section: Influence Of Anaerobic Digested Slurry On the Soil Microbiotamentioning

confidence: 60%

Animal Manures: Recycling and Management Technologies

Gómez-Brandòn¹,

Domínguez²,

Insam³

2013

Biomass Now - Cultivation and Utilization

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“…Underpinned by international policy and the increasing cost of fossil fuels (Macleay et al, 2013), biomass to energy schemes are becoming increasingly common (Bougnom et al, 2012). Across Europe, gasification, incineration, biomass boilers and anaerobic digestion (AD) are currently the dominant technologies being deployed to convert a wide range of biomass and waste biomass derived fuels into renewable energy (McKendry, 2002).…”

Section: Introductionmentioning

confidence: 99%