Agricultural use of digestate for horticultural crop production and improvement of soil properties

Alburquerque, José Antonio; Fuente, Carlos de la; Campoy, M.; Carrasco, L.; Nájera, I.; Baixauli, Carlos; Caravaca, F.; Roldán, A.; Cegarra, J.; Bernal, M.P.

doi:10.1016/j.eja.2012.06.001

Cited by 262 publications

(177 citation statements)

References 20 publications

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“…Another study indicates that digestates did not influence earthworm populations, whereas earthworms were positively influenced by the green manure crop otherwise used as feedstock for anaerobic digestion (Frøseth et al 2014). Alburquerque et al (2012b) found a significant increase in alkaline phosphatase activity (linked to the P cycle) in soils treated with digestates; however, no changes in β-glucosidase (linked to the carbon cycle), urease, and protease (both linked to the N cycle) activities were measured. Also, Bachmann et al (2014) reported that the activities of dehydrogenase and alkaline phosphatase were 50 % lower in the soils that were amended with digestate compared with input not digested feedstock.…”

Section: Effects Of Anaerobic Digestion On Soil Properties and Soil Bmentioning

confidence: 99%

“…Many reports indicate an enhanced soil microbial activity after field applications of digestates in comparison to inorganic fertilizers or untreated controls (Alburquerque et al 2012b;Bachmann et al 2011Bachmann et al , 2014Galvez et al 2012;Kautz and Rauber 2007;Lošák et al 2011;Odlare et al 2008Odlare et al , 2011Ross et al 1989;Schröder et al 1996;Walsh et al 2012a, b;Clements 2013). Elste et al (2010) reported that soil application of digestates enhanced the abundance and biomass of earthworms.…”

Section: Effects Of Anaerobic Digestion On Soil Properties and Soil Bmentioning

confidence: 99%

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Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Möller¹

2015

Agron. Sustain. Dev.

236

139

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Sustainability in agriculture means the inclusion of several aspects, as sustainable agriculture systems must not compromise not only their ability to satisfy future needs by undermining soil fertility and the natural resource base but also sustainable agriculture has had to address a range of other issues including energy use, efficient use, and recycling of nutrients, the effects on adjacent ecosystems including the effects on water bodies and climate change. Organic manures are an important factor to keep the soil fertility level of soils. However, their management is often related to large emissions. In this context, anaerobic digestion is-similarly to composting-a treatment option for stabilization of biogenic wastes leading to a residual product called digestates, enabling the sanitation and the recycling and use as fertilizer. It is also a means to obtain energy from wastes as well as from dedicated energy crops. Therefore, anaerobic digestion potentially addresses several aspects of agricultural sustainability. This review discusses the current state of knowledge on the effects of anaerobic digestion on organic compounds in digestates and the most important processes influencing N emissions in the field, as well as the possible longterm effects on soil microbial biomass and soil fertility. The main findings are that (1) the direct effects of anaerobic digestion on long-term sustainability in terms of soil fertility and environmental impact at the field level are of minor relevance. (2) The most relevant effects of anaerobic digestion on soil fertility as well as on N emissions will be expected from indirect effects related to cropping system changes such as changes in crop rotation, crop acreage, cover cropping, and total amounts of organic manures including digestates. Furthermore, (3) the remaining organic fraction after anaerobic digestion is much more recalcitrant than the input feedstocks leading to a stabilization of the organic matter and a lower organic matter degradation rate after field application, enabling a similar reproduction of the soil organic matter as obtained by direct application of the feedstock or by composting of the feedstock. (4) Regarding emissions, the main direct effect of anaerobic digestion on a farm level is the influence on gaseous emissions during manure or digestate treatment and handling, whereas the direct effects of anaerobic digestion on a field level on emissions (NH 3 − and N 2 O − emissions, NO 3 -leaching) are negligible or at least ambiguous. (5) The main direct effects of anaerobic digestion on the field level are short-term effects on soil microbial activity and changes in the soil microbial community. Therefore, in terms of the effects on agricultural sustainability, potential cropping system-based changes induced by introduction of biogas plants are probably much more relevant for the overall performance and sustainability of the cropping system than the direct effects triggered by application of digestates in comparison to the undigested feedstock...

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Section: Effects Of Anaerobic Digestion On Soil Properties and Soil Bmentioning

confidence: 99%

Section: Effects Of Anaerobic Digestion On Soil Properties and Soil Bmentioning

confidence: 99%

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Möller¹

2015

Agron. Sustain. Dev.

236

139

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“…BD also increases the content of organic C in the soil and reduces the rate of its transformation in comparison to non-digested input organic materials (Chen et al 2012, Johansen et al 2013, Lopedota et al 2013. BD contains more (60-70% of total N) mineral nitrogen (NH4 + / NH3 -) compared to different types of organic fertilizers (e.g., compost, cattle manure contains 6-30% mineral N of total N) (Svensson et al 2004, Alburquerque et al 2012, Lopedota et al 2013. Mineral nitrogen found in digestate occurs in readily available form to plants.…”

Section: Introductionmentioning

confidence: 99%

“…Nitrogen losses after fertilization with BD may be higher compared to other types of organic fertilizers, on the other side, these nitrogen losses may be similar to synthetic mineral fertilizers, especially in soils with low N retention (sorption). Efficient fertilization with BD should depend on its properties, and this means that it should be applied in small split doses adjusted to crop and soil requirements (Alburquerque et al 2012, Lopedota et al 2013. Depending on the feedstocks used for biogas production, BD can significantly differ in the content and proportions of macro-and micronutrients (Demirel et al 2013, Różyło et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Phytochemical properties and heavy metal accumulation in wheat grain after three years’ fertilization with biogas digestate and mineral waste

Różyło

Świeca

Gawlik‐Dziki

et al. 2017

AFSci

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Non-standard materials used for plant fertilization, require characterization to reduce any possible undesired effects. The aim of this study was to investigate the effect of fertilization with biogas digestate (BD) and mining waste (carboniferous mudstones (MS) from coal mine) on wheat yield quality and the bioaccumulation of heavy metals in wheat grains in relation to conventional fertilization (NPK) and no fertilization. Using the co-application of waste (MS+BD), the highest yield was obtained in the first and second year, but in the third year, a slight decrease in yield was observed compared to NPK. In all years, BD and MS+BD fertilization increased the content of protein, wet gluten, and phenols in wheat grain compared to NPK and no fertilization. Waste fertilization had a positive effect on the antioxidant capacity index of grain but only in the first year. The bioaccumulation index (BAI) demonstrated that NPK decreased BAI for Zn, B, Cd, and Mn, whereas MS+BD decreased BAI for Cu, Sr, Pb, Co, Ba, and Cr.

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“…Application of AD on agricultural soils will influence the intrinsic soil organic matter pools, due to their organic carbon contents (Boyd et al, 1980). Additionally, it will enhance the fertility of soils (Réveillé et al, 2003) due to their vast amounts of plant nutrients (Alburquerque et al, 2012) like plant available ammonium, potassium, and phosphorus (Sørensen and Møller, 2009). Besides these positive properties, digestates are suspected to have negative impacts on soils since they transfer recalcitrant amphiphilic substances (eg humic, fulvic, and fatty acids) into the soil matrix.…”

Section: Introductionmentioning

confidence: 99%

Quantity of Hydrophobic Functional CH-Groups – Decisive for Soil Water Repellency Caused by Digestate Amendment

Voelkner¹,

Holthusen²,

Ellerbrock³

et al. 2015

International Agrophysics

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Anaerobic digestates are used as organic fertilizers; however, they are suspected to interfere negatively with soils. To investigate the relevance of the anaerobic digestates composition on potential wettability and contact angle of the soil, we mixed in a laboratory experiment 30 m³ ha-1 of anaerobic digestates derived from mechanically pre-treated substrates from maize and sugar beet with a homogenized Cambic Luvisol. Fourier transform infrared-spectra and diffuse reflectance infrared Fourier transform-spectra of particle intact and finely ground soilanaerobic digestates-mixtures were analyzed to determine the quantities of hydrophobic functional groups in the soil-anaerobic digestates-mixtures that are used here as an indicator for the potential hydrophobicity. The anaerobic digestates application increased the amount of hydrophobic functional groups of the mixtures and reduced the wettability of the soil. However, for intact particle samples an up to threefold higher amount of hydrophobic groups was found as compared to the finely ground ones, indicating a dilution effect of mechanical grinding on the effectivity of the organic matter that is presumably located as a coating on mineral soil particles. For the particle intact samples, the intensity of hydrophobic functional groups bands denoting hydrophobic brickstones in organic matter is indicative for the actual wettability of the soil-anaerobic digestates-mixtures.

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Agricultural use of digestate for horticultural crop production and improvement of soil properties

Cited by 262 publications

References 20 publications

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Phytochemical properties and heavy metal accumulation in wheat grain after three years’ fertilization with biogas digestate and mineral waste

Quantity of Hydrophobic Functional CH-Groups – Decisive for Soil Water Repellency Caused by Digestate Amendment

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