Ammonia emission from a permanent grassland on volcanic soil after the treatment with dairy slurry and urea

Salazar, Francisco; Martínez-Lagos, Josué; Alfaro, Marta; Misselbrook, Tom

doi:10.1016/j.atmosenv.2014.06.057

Cited by 27 publications

(23 citation statements)

References 39 publications

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“…The ammonia emission rate from fields fertilized with manure slurry peaks within the first 24 h after applying the manure slurry in the field. This is probably because the volatile ammonia is already present in the manure slurry when it is applied to the field (Huijsmans et al 2001;McGinn and Sommer 2007;Rochette et al 2009;Salazar et al 2014). In contrast, the ammonia emission rate from the fields applied with synthetic urea fertilizer is more variable, and the maximum rate is not reached before 48 h to 12 days after fertilizing the field, as urea must first be hydrolyzed by the microbial urease present in the soil (Rochette et al 2009;Salazar et al 2014).…”

Section: Urine-derived Versus Synthetic Urea As Fertilizermentioning

confidence: 77%

“…In contrast, the ammonia emission rate from the fields applied with synthetic urea fertilizer is more variable, and the maximum rate is not reached before 48 h to 12 days after fertilizing the field, as urea must first be hydrolyzed by the microbial urease present in the soil (Rochette et al 2009;Salazar et al 2014). The cumulative emissions of ammonia from the fields applied with manure slurry compared to those applied with synthetic urea fertilizers depend very much on conditions such as the method of fertilizer application, temperature, and weather (Bussink and Oenema 1998;Rochette et al 2009;Salazar et al 2014). Studies indicate that the emissions of ammonia from fields fertilized with synthetic urea and manure slurry are very similar.…”

Section: Urine-derived Versus Synthetic Urea As Fertilizermentioning

confidence: 99%

“…This is probably because the volatile ammonia is already present in the manure slurry when it is applied to the field (Huijsmans et al 2001;McGinn and Sommer 2007;Rochette et al 2009;Salazar et al 2014). In contrast, the ammonia emission rate from the fields applied with synthetic urea fertilizer is more variable, and the maximum rate is not reached before 48 h to 12 days after fertilizing the field, as urea must first be hydrolyzed by the microbial urease present in the soil (Rochette et al 2009;Salazar et al 2014). The cumulative emissions of ammonia from the fields applied with manure slurry compared to those applied with synthetic urea fertilizers depend very much on conditions such as the method of fertilizer application, temperature, and weather (Bussink and Oenema 1998;Rochette et al 2009;Salazar et al 2014).…”

Section: Urine-derived Versus Synthetic Urea As Fertilizermentioning

confidence: 99%

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The molecular processes of urea hydrolysis in relation to ammonia emissions from agriculture

Sigurdarson

Svane

Karring

2018

Rev Environ Sci Biotechnol

244

129

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Ammonia emissions from the agricultural sector give rise to numerous environmental and societal concerns and represent an economic challenge in crop farming, causing a loss of fertilizer nitrogen. Ammonia emissions from agriculture originate from manure slurry (livestock housing, storage, and fertilization of fields) as well as urea-based mineral fertilizers. Consequently, political attention has been given to ammonia volatilization, and regulations of ammonia emissions have been implemented in several countries. The molecular cause of the emission is the enzyme urease, which catalyzes the hydrolysis of urea to ammonia and carbonic acid. Urease is present in many different organisms, encompassing bacteria, fungi, and plants. In agriculture, microorganisms found in animal fecal matter and soil are responsible for urea hydrolysis. One strategy to reduce ammonia emissions is the application of urease inhibitors as additives to urea-based synthetic fertilizers and manure slurry to block the formation of ammonia. However, treatment of the manure slurry with urease inhibitors is associated with increased livestock production costs and has not yet been commercialized. Thus, development of novel, environmentally friendly and cost-effective technologies for ammonia emission mitigation is important. This mini-review describes the challenges associated with the volatilization of ammonia in agriculture and provides an overview of the molecular processes of urea hydrolysis and ammonia emissions. Different technologies and strategies to reduce ammonia emissions are described with a special focus on the use of urease inhibitors. The mechanisms of action and efficiency of the most important urease inhibitors in relation to agriculture will be briefly discussed.

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Section: Urine-derived Versus Synthetic Urea As Fertilizermentioning

confidence: 77%

Section: Urine-derived Versus Synthetic Urea As Fertilizermentioning

confidence: 99%

Section: Urine-derived Versus Synthetic Urea As Fertilizermentioning

confidence: 99%

See 1 more Smart Citation

The molecular processes of urea hydrolysis in relation to ammonia emissions from agriculture

Sigurdarson

Svane

Karring

2018

Rev Environ Sci Biotechnol

244

129

View full text Add to dashboard Cite

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“…Chile (Huygens et al, 2008). Regarding NH 4 + -N, a large mineralization rate has also been reported in the region (336 kg ha -1 yr -1 , Martínez-Lagos et al, 2015), which determines a higher availability in relation to that applied as slurry; but in turn slurry ammonium is lost as volatilized ammonia when it is applied (Muñoz et al, 2016), reaching up to 16-82 % of the applied NH 4 + -N (Salazar et al, 2014). Other sources and sinks for N have low rates: non-symbiotic fixation (Pérez et al, 2003), denitrification (Paulino et al, unpublished data), and runoff (Alfaro et al, 2008).…”

Section: Nutrient Balancementioning

confidence: 98%

Dairy slurry application to grasslands and groundwater quality in a volcanic soil

Huertas

Cuevas

Paulino

et al. 2016

J. Soil Sci. Plant Nutr.

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Research in volcanic-ash soils has shown that they largely capture the dairy slurry following application to land; however, their hydrological properties would favor nutrient leaching. Our objective was to evaluate the contribution of biogeochemical and hydrological controls on the pollution of groundwater by cattle slurry applied to a permanent grassland growing on a volcanic soil. We sampled groundwater chemistry since 10 months before the fertilization (three samplings), and 16 months after, with samplings 1-2 months after the fertigation. Following fertilization, ammonium, exchangeable potassium, and magnesium soil concentrations increased in the fertilized plots compared to the control plots. In contrast, no effect of slurry on groundwater quality was detected, with the exception of dissolved organic nitrogen, a main component of dairy slurry that increased in the groundwater below the fertilized plots. Despite the fact that biogeochemical controls predominate, hydrological aspects would be important when rainfall is high, evapotranspiration is low, groundwater table level is high, and water movement in the saturated zone increases. We concluded that the application of slurry to pastures under rates comparable to a high fertilization in the short term, does not generally impact the groundwater quality in volcanic ash-derived soils.

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“…Other researchers have found a similar pattern (e.g. Meisinger & Jokela 2000;Sherlock et al 2002;Panetta et al 2005;Rochette et al 2009;Salazar et al 2014). It has been reported that 1%-66% of applied effluent N is lost as NH 3 (e.g.…”

Section: Ammonia Volatilisationmentioning

confidence: 52%

Nitrogen gaseous emissions from farm effluent application to pastures and mitigation measures to reduce the emissions: a review

Luo

Shi

et al. 2015

New Zealand Journal of Agricultural Research

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Potential losses of nitrogen (N) from land application of effluents include ammonia (NH 3 ) and nitrous oxide (N 2 O) emissions. In this review paper, the extent of the NH 3 and N 2 O losses resulting from application of effluents to pastoral soils is assessed. Nitrogen losses, as NH 3 and N 2 O, from applied effluent to pastoral soil ranged from 1%-66% and <0.1%-6% of the applied N, respectively. The potential mitigation methods include: reducing livestock numbers; lowering N content of the effluent; using N process inhibitors; optimising timing of effluent application; and applying effluent at rates that match plant uptake. It is important to remember that some of these options can result in 'pollution swapping' and some of them are in the early stages of development. Future research needs to focus on the overall impact of mitigation options on the whole suite of gaseous emissions and the practicality of those options.

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Ammonia emission from a permanent grassland on volcanic soil after the treatment with dairy slurry and urea

Cited by 27 publications

References 39 publications

The molecular processes of urea hydrolysis in relation to ammonia emissions from agriculture

The molecular processes of urea hydrolysis in relation to ammonia emissions from agriculture

Dairy slurry application to grasslands and groundwater quality in a volcanic soil

Nitrogen gaseous emissions from farm effluent application to pastures and mitigation measures to reduce the emissions: a review

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