The impact of management practices and meteorological conditions on ammonia and nitrous oxide emissions following application of hog slurry to forage grass in Nova Scotia

Mkhabela, M.S.; Gordon, Robert J.; Burton, David L.; Smith, E.; Madani, Ali

doi:10.1016/j.agee.2008.11.012

Cited by 41 publications

(14 citation statements)

References 28 publications

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“…It is well known that N and C mineralization increases with temperature due to the physiological adaptation of soil organisms to their soil habitat (Sierra, 1997;De Neve et al, 1996). Similar results have also been reported recently by Agehara and Warncke (2005), Mkhabela et al (2009), andPredotova et al (2010). Similarly, NH 3 emission is affected by factors such as fertilizer type, application rate and method, weather and field conditions (Huijsmans et al, 2003).…”

Section: Discussionsupporting

confidence: 77%

Gaseous emissions of nitrogen and carbon from urban vegetable gardens in Bobo‐Dioulasso, Burkina Faso

Lompo

Sangaré

Compaoré

et al. 2012

Z. Pflanzenernähr. Bodenk.

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Urban and peri-urban agriculture (UPA) is an important livelihood strategy for the urban poor in sub-Saharan Africa and contributes to meeting increasing food demands in the rapidly growing cities. Although in recent years many research activities have been geared towards enhancing the productivity of this land-use system, little is known about turnover processes and nutrient efficiency of UPA. The aim of our study therefore was to determine horizontal fluxes of N, P, K, and C as well as gaseous N and C emissions in urban vegetable gardens of Bobo-Dioulasso, Burkina Faso. Two gardens referred to as "Kodéni" and "Kuinima" were selected as representative for urban and peri-urban systems classified as: (1) "commercial gardening + field crops and livestock system" and (2) "commercial gardening and semicommercial field crop system", respectively. A nutrient-balance approach was used to monitor matter fluxes from March 2008 to March 2009 in both gardens. Ammonia (NH 3 ), nitrous oxide (N 2 O) and carbon dioxide (CO 2 ) emissions from the respective soils were measured during the coolest and the hottest period of the day using a closed-chamber system. Annual partial balances amounted to 2056 kg N ha -1 , 615 kg P ha -1 , 1864 kg K ha -1 , and 33 893 kg C ha -1 at Kodéni and to 1752 kg N ha -1 , 446 kg P ha -1 , 1643 kg K ha -1 , and 21 021 kg C ha -1 at Kuinima. Emission rates were highest during the hot midday hours with peaks after fertilizer applications when fluxes of up to 1140 g NH 3 -N ha -1 h -1 , 154 g N 2 O-N ha -1 h -1 , 12 993 g CO 2 -C ha -1 h -1 were recorded for Kodéni and Kuinima. Estimated annual gaseous N (NH 3 -N + N 2 O-N) and C (CO 2 -C + CH 4 -C) losses reached 419 kg N ha -1 and 35 862 kg C ha -1 at Kodéni and 347 kg N ha -1 and 22 364 kg C ha -1 at Kuinima. For both gardens, this represented 20% and 106% of the N and C surpluses, respectively. Emissions of NH 3 , largely emitted after surface application of manure and mineral fertilizers, accounted for 73% and 77% of total estimated N losses for Kodéni and Kuinima. To mitigate N losses nutrient-management practices in UPA vegetable production of Bobo-Dioulasso would greatly benefit from better synchronizing nutrient-input rates with crop demands.

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Section: Discussionsupporting

confidence: 77%

Gaseous emissions of nitrogen and carbon from urban vegetable gardens in Bobo‐Dioulasso, Burkina Faso

Lompo

Sangaré

Compaoré

et al. 2012

Z. Pflanzenernähr. Bodenk.

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“…Furthermore, there is concern that NH 3 reduction may result in greater losses via other pathways, e.g. N 2 O, NO 3 , and not necessarily lead to greater N uptake (Dosch and Gutser, 1996;Misselbrook et al, 2006;Wulf et al, 2002a,b;Weslien et al, 1998;Rodhe et al, 2006;Mkhabela et al, 2009). Most results in the literature are in agreement regarding the effect of the application technique on NH 3 , for which average emission factors have been quantified (EMEP/CORINAIR, 2007;CORPEN, 2006;Søgaard et al, 2002;Sommer and Hutchings, 2001), but studies on the effect of application technique on N 2 O are contradictory, probably because this emission is the most influenced by interacting environmental variables (Peoples et al, 2004;Velthof et al, 2003).…”

Section: Introductionmentioning

confidence: 97%

Inclusion of the variability of diffuse pollutions in LCA for agriculture: the case of slurry application techniques

Langevin¹,

Basset-Mens

Lardon

2010

Journal of Cleaner Production

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“…The volatilisation of NH3-N from digestate depends on the following key factors -method of soil application [4], application timing [61] and subsequent weather conditions [86,98]. This can be mitigated by minimising the surface area of digestate exposed to air after application through different modes of spreading which lower the air velocity above the digestate and ensure rapid incorporation into the topsoil by binding gaseous ammonia to soil colloids and soil water [4,35].…”

Section: Post-digestion Best Practicementioning

confidence: 99%

Emerging perspectives on environmental burden minimisation initiatives from anaerobic digestion technologies for community scale biomass valorisation

Tiwary

Williams

Pant

et al. 2015

Renewable and Sustainable Energy Reviews

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This paper provides an extensive review of anaerobic digestion (AD) systems, with a specific focus on community scale digesters for urban applications, processing either municipal organic waste exclusively or as mix feed. Emphasis is placed on reducing the systems scale environmental impact of AD technologies, including pre-and post-treatment stages, alongside biogas production. Developments to-date in AD system research in Europe and in the Asia region have been compared, providing a comprehensive evaluation of current practice, elucidating the areas of further potentials.The scope of this review is two-fold -one, covering AD technologies including a cohort of simple and integrated wet and dry systems, which can be operated as continuous flow designs in single-or multi-stages. Two, focusing more on practices in digestate handling that minimise environmental impacts arising from their storage and land application. From an environmental perspective, we note the following trends emerging in the literature for processing urban waste that need further exploitation: dry AD (60-85% moisture) is suitable for low organic loads, mainly owing to resource savings in terms of water usage; co-digestion has shown better buffering capability, especially for two-stage digestion of food-based feed stocks; separating the digestate into liquid/solid fractions is effective for handling postdigestion emissions, mainly for mitigating ammonia volatilisation to air and phosphate leaching to soil.We report responses to a survey, conducted for this review, highlighting the contemporary issues and challenges -with particular focus on the operational, social and management issues from an Indian perspective. There is need for follow-up of running plants to ensure their environmental performance. Such initiatives will have to consider managing of pollution footprints from AD, alongside the current drive for its widespread implementation for two incentives: greenhouse gas mitigation and fossil-fuel independence.

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The impact of management practices and meteorological conditions on ammonia and nitrous oxide emissions following application of hog slurry to forage grass in Nova Scotia

Cited by 41 publications

References 28 publications

Gaseous emissions of nitrogen and carbon from urban vegetable gardens in Bobo‐Dioulasso, Burkina Faso

Gaseous emissions of nitrogen and carbon from urban vegetable gardens in Bobo‐Dioulasso, Burkina Faso

Inclusion of the variability of diffuse pollutions in LCA for agriculture: the case of slurry application techniques

Emerging perspectives on environmental burden minimisation initiatives from anaerobic digestion technologies for community scale biomass valorisation

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