Effect of slurry and ammonium nitrate application on greenhouse gas fluxes of a grassland soil under atypical South West England weather conditions

Louro, Aránzazu; Sawamoto, Takuji; Chadwick, D. R.; Pezzolla, Daniela; Bol, Roland; Báez, D.; Cardenas, L. M.

doi:10.1016/j.agee.2013.09.005

Cited by 28 publications

(14 citation statements)

References 45 publications

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“…Although high N 2 O emissions from the Scottish site suggest regional variations, rainfall appears to be a major control. This is supported by Flynn et al (2005) who argue that "transient properties" not "permanent soil features" are largely responsible for a variation in emissions, and similar studies that have ascribed low fluxes to unusually dry conditions (Louro et al, 2013). Dobbie et al (1999) also found rainfall and temperature to have the greatest influence on N 2 O, and strong relationships between %WFPS and N 2 O emissions are reported in Garcia-Marco et al (2014).…”

Section: Discussionmentioning

confidence: 77%

See 1 more Smart Citation

Nitrous oxide emissions from fertilised UK arable soils: Fluxes, emission factors and mitigation

Bell

Hinton

Cloy

et al. 2015

Agriculture, Ecosystems & Environment

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Section: Discussionmentioning

confidence: 77%

“…A closed static chamber technique was used at all sites (to maintain consistency with other similar experiments; e.g. Louro et al, 2013;Chadwick et al, 2014), where five chambers were inserted 5 cm into the soil on each plot. This gave a total of 15 replicate chambers for each treatment, and 150 chambers at each location.…”

Section: N 2 O Emission Samplingmentioning

confidence: 99%

Nitrous oxide emissions from fertilised UK arable soils: Fluxes, emission factors and mitigation

Bell

Hinton

Cloy

et al. 2015

Agriculture, Ecosystems & Environment

Self Cite

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“…The reason is that injection increases the water soil content and concentrations of soluble carbon (C) and available N in the injection slots, favoring N 2 O production from nitrification and especially denitrification (Klein et al, 1996;Webb et al, 2010). Although after the DS application to soil N 2 O emission in quantitative terms is generally lower than 2 % (Louro et al, 2013;Bell et al, 2015;van der Weerden et al, 2016), it is relevant from an environmental point of view. This is because aside from being a potent greenhouse gas, with a global warming power nearly 310-fold that of CO 2 (Cui et al, 2011), N 2 O is also associated with the depletion of the ozone layer (Stocker et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Nitrous Oxide Emissions in a Wheat/Corn Succession Combining Dairy Slurry and Urea as Nitrogen Sources

Aita¹,

Tonetto²,

Pujol³

et al. 2018

Rev. Bras. Ciênc. Solo

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The impact on nitrous oxide (N 2 O) emissions caused by combining dairy slurry (DS) and urea to supply crops with nitrogen (N) is still not well characterized. The main objective of this study was to compare the differences between N 2 O emissions in the cases of exclusive use of urea and the combined use of DS and urea as N sources to no-tillage wheat and corn. We also compared N 2 O emissions between two DS application methods (surface-broadcast vs. injection), as well as the addition of dicyandiamide (DCD) to DS. The experiment was conducted under no-tillage and six treatments were applied at sowing as follows: no fertilization (control), surface-broadcast urea (urea-N), surface-broadcast DS (DSs), surface-broadcast DS with DCD (DSs + DCD), shallow-injected DS (DSi), and shallow-injected DS with DCD (DSi + DCD). Urea was applied at side-dressing in all treatments with DS and urea-N. The N 2 O emissions were evaluated from the application of the treatments to wheat until 22 days after corn harvest, resulting in a total of 364 days. The partial supply of the N demand of wheat and corn, by DS application at sowing, and the posterior complement of N demand by side-dressing urea increased the annual N 2 O emissions only when DS was shallow-injected without DCD (DSi). Although the amount of N 2 ON emitted from the DSi treatment was 1.04 kg ha-1 (91.2 %) higher than from DSs in corn, the annual N 2 ON emissions did not differ between the two methods of DS application to the soil. The emission factors of N 2 ON were low, ranging from 0.49 % (DSi + DCD) to 1.27 % (DSi). The results of this study suggest that the combined use of DS with urea in N fertilization of no-tillage wheat and corn (DS applied at sowing and urea at side-dressing) caused no changes in the annual N 2 ON emissions compared to crops fertilized exclusively with urea (1/3 at sowing + 2/3 at side-dressing). However, DCD should be added if DS is shallow-injected.

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“…For example, studies showed that nitrogen deposition stimulated N 2 O emission Zhang et al, 2014], which partially canceled out the stimulating impact on CO 2 uptake [Niu et al, 2010;Niu et al, 2009;Volk et al, 2011]; few other studies found that nitrogen addition stimulated CH 4 flux in semiarid grasslands [Chen et al, 2013;Li et al, 2012;Louro et al, 2013;Šimek et al, 2014;Stiehl-Braun et al, 2011;Zhang et al, 2014]; manipulative experiments found that increased precipitation enhanced ecosystem CO 2 uptake through its stimulating effect on gross primary production [Chimner et al, 2010;Nagy et al, 2007;Yan et al, 2011]. For CH 4 uptake, the impact of water addition could be inhibition [Blankinship et al, 2010b;Liu and Greaver, 2009], neutral [Liu and Greaver, 2009;Mariko et al, 2007], or stimulating [Blankinship et al, 2010a;Xu et al, 2015]; while for N 2 O emission, the impact of water addition could be stimulating [Horváth et al, 2010;Zhang and Han, 2008] or neutral [Liu and Greaver, 2009;Unteregelsbacher et al, 2013] in semiarid grassla nds.…”

Section: Introductionmentioning

confidence: 99%

Interactive impacts of nitrogen input and water amendment on growing season fluxes of CO2, CH4, and N2O in a semiarid grassland, Northern China

Zhang

Hou

Guo

et al. 2017

Science of The Total Environment

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Nitrogen and water are two important factors influencing GHG (primarily CO - carbon dioxide; CH - methane, and NO - nitrous oxide) fluxes in semiarid grasslands. However, the interactive effects of nitrogen and water on GHG fluxes remain elusive. A 3-year (2010-2012) manipulative experiment was conducted to investigate the individual and interactive effects of nitrogen and water additions on GHG fluxes during growing seasons (May to September) in a semiarid grassland in Northern China. Accumulated throughout growing seasons, nitrogen input stimulated CO uptake by 3.3±1.0gCm (gN), enhanced NO emission by 1.2±0.3mgNm (gN), and decreased CH uptake by 5.2±0.9mgNm (gN); water amendment stimulated CO uptake by 0.2±0.1gCm (mmHO) and NO emission by 0.2±0.02mgNm (mmHO), decreased CH uptake by 0.3±0.1mgCm (mmHO). A synergistic effect between nitrogen and water was found on NO flux in normal year while the additive effects of nitrogen and water additions were found on CH and CO uptakes during all experiment years, and on NO emission in dry years. The nitrogen addition had stronger impacts than water amendment on stimulating CH uptake in the normal year, while water was the dominant factor affecting CH uptake in dry years. For NO emission, the N-stimulating impact was stronger in un-watered than in watered plots, and the water-stimulating impact was stronger in non-fertilized than in fertilized treatments in dry years. The interactive impacts of nitrogen and water additions on GHG fluxes advance our understanding of GHG fluxes in responses to multiple environmental factors. This data source could be valuable for validating ecosystem models in simulating GHG fluxes in a multiple factors environment.

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Effect of slurry and ammonium nitrate application on greenhouse gas fluxes of a grassland soil under atypical South West England weather conditions

Cited by 28 publications

References 45 publications

Nitrous oxide emissions from fertilised UK arable soils: Fluxes, emission factors and mitigation

Nitrous oxide emissions from fertilised UK arable soils: Fluxes, emission factors and mitigation

Nitrous Oxide Emissions in a Wheat/Corn Succession Combining Dairy Slurry and Urea as Nitrogen Sources

Interactive impacts of nitrogen input and water amendment on growing season fluxes of CO2, CH4, and N2O in a semiarid grassland, Northern China

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