scholarly journals Reducing nitrous oxide emissions by changing N fertiliser use from calcium ammonium nitrate (CAN) to urea based formulations

2016 ◽  
Vol 563-564 ◽  
pp. 576-586 ◽  
Author(s):  
M.A. Harty ◽  
P.J. Forrestal ◽  
C.J. Watson ◽  
K.L. McGeough ◽  
R. Carolan ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Ammonium Nitrate ◽  
Nitrous Oxide Emissions ◽  
Calcium Ammonium Nitrate ◽  
Fertiliser Use

scholarly journals The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland

2016 ◽  
Vol 55 (1) ◽  
pp. 1-9 ◽  
Author(s):  
B.P. Hyde ◽  
P.J. Forrestal ◽  
M.M.R. Jahangir ◽  
M. Ryan ◽  
A.F. Fanning ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Ammonium Nitrate ◽  
Interactive Effects ◽  
Nitrous Oxide Emissions ◽  
Limited Data ◽  
Calcium Ammonium Nitrate ◽  
Multiplicative Effect ◽  
Small Plot ◽  
Grazing Systems ◽  
The Individual

Abstract Nitrous oxide (N2O) is an important and potent greenhouse gas (GHG). Although application of nitrogen (N) fertiliser is a feature of many grazing systems, limited data is available on N2O emissions in grassland as a result of the interaction between urine, dung and fertiliser N. A small plot study was conducted to identify the individual and interactive effects of calcium ammonium nitrate (CAN) fertiliser, dung and urine. Application of CAN with dung and urine significantly increased the mass of N2O-N emission. Importantly, the sum of N2O-N emitted from dung and CAN applied individually approximated the emission from dung and CAN fertiliser applied together, that is, an additive effect. However, in the case of urine and CAN applied together, the emission was more than double the sum of the emission from urine and CAN fertiliser applied individually, that is, a multiplicative effect. Nitrous oxide emissions from dung, urine and fertiliser N are typically derived individually and these individual emission estimates are aggregated to produce estimates of N2O emission. The presented findings have important implications for how individual emission factors are aggregated; they suggest that the multiplicative effect of the addition of CAN fertiliser to urine patches needs to be taken into account to refine the estimation of N2O emissions from grazing grasslands.

scholarly journals The interactive effects of various nitrogen fertiliser formulations applied to urine patches on nitrous oxide emissions in grassland

2017 ◽  
Vol 56 (1) ◽  
pp. 54-64 ◽  
Author(s):  
D.J. Krol ◽  
E. Minet ◽  
P.J. Forrestal ◽  
G.J. Lanigan ◽  
O. Mathieu ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Ammonium Nitrate ◽  
Emission Factor ◽  
Nitrification Inhibitor ◽  
Interactive Effects ◽  
Nitrous Oxide Emissions ◽  
Calcium Ammonium Nitrate ◽  
N Fertilisers ◽  
Urine Patch ◽  
Cover Up

AbstractPasture-based livestock agriculture is a major source of greenhouse gas (GHG) nitrous oxide (N2O). Although a body of research is available on the effect of urine patch N or fertiliser N on N2O emissions, limited data is available on the effect of fertiliser N applied to patches of urinary N, which can cover up to a fifth of the yearly grazed area. This study investigated whether the sum of N2O emissions from urine and a range of N fertilisers, calcium ammonium nitrate (CAN) or urea ± urease inhibitor ± nitrification inhibitor, applied alone (disaggregated and re-aggregated) approximated the N2O emission of urine and fertiliser N applied together (aggregated). Application of fertiliser to urine patches did not significantly increase either the cumulative yearly N2O emissions or the N2O emission factor in comparison to urine and fertiliser applied separately with the emissions re-aggregated. However, there was a consistent trend for approximately 20% underestimation of N2O loss generated from fertiliser and urine applied separately when compared to figures generated when urine and fertiliser were applied together. N2O emission factors from fertilisers were 0.02%, 0.06%, 0.17% and 0.25% from urea ± dicyandiamide (DCD), urea + N-(n-butyl) thiophosphoric triamide (NBPT) + DCD, urea + NBPT and urea, respectively, while the emission factor for urine alone was 0.33%. Calcium ammonium nitrate and urea did not interact differently with urine even when the urea included DCD. N2O losses could be reduced by switching from CAN to urea-based fertilisers.

Streaming Urea Ammonium Nitrate with or without Enhanced Efficiency Products Impacted Corn Yields, Ammonia, and Nitrous Oxide Emissions

2018 ◽  
Vol 110 (2) ◽  
pp. 444-454 ◽  
Author(s):  
A. L. Woodley ◽  
C. F. Drury ◽  
X. M. Yang ◽  
W. D. Reynolds ◽  
W. Calder ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Ammonium Nitrate ◽  
Nitrous Oxide Emissions ◽  
Urea Ammonium Nitrate

Nitrous Oxide Emissions from Barley Plots Treated with Ammonium Nitrate or Sewage Sludge

1982 ◽  
Vol 11 (1) ◽  
pp. 78-81 ◽  
Author(s):  
A. R. Mosier ◽  
G. L. Hutchinson ◽  
B. R. Sabey ◽  
J. Baxter
Keyword(s):  
Nitrous Oxide ◽  
Sewage Sludge ◽  
Ammonium Nitrate ◽  
Nitrous Oxide Emissions

scholarly journals Nitrous oxide emissions from clover in the Mediterranean environment

2016 ◽  
Vol 11 (2) ◽  
pp. 133 ◽  
Author(s):  
Iride Volpi ◽  
Simona Bosco ◽  
Nicoletta Nassi o Di Nasso ◽  
Federico Triana ◽  
Neri Roncucci ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Phase 1 ◽  
Nitrous Oxide Emissions ◽  
Phase 2 ◽  
Mediterranean Environment ◽  
The Mediterranean ◽  
Two Phases ◽  
Leguminous Crops ◽  
Fertiliser Use

Introducing nitrogen N<sub>2</sub>-fixing crops into cereal-based crop rotations reduces N-fertiliser use and may mitigate soil emissions of nitrous oxide (N<sub>2</sub>O). However, the effect of the cultivation of N<sub>2</sub>-fixing crops on N<sub>2</sub>O emissions is still not well understood. N<sub>2</sub>O from N<sub>2</sub>-fixing crops can be emitted in two ways: during biological N<sub>2</sub> fixation itself and when legume residues are returned to the soil. A field trial was carried out on clover (<em>Trifolium squarrosum</em> Savi) to test the role of leguminous crops on N<sub>2</sub>O emissions in the Mediterranean environment. Monitoring was performed from December 2013 to September 2014. Cumulated N-N<sub>2</sub>O fluxes were calculated for the growing season (Phase 1) and the post-harvest period (Phase 2) in order to assess the importance of each phase. Our results did not show statistically significant differences between the two phases in term of contribution to the total cumulative N-N<sub>2</sub>O emissions, in fact Phase 1 and Phase 2 accounted respectively for 43 and 57% of the total.

scholarly journals Application of Nitrogen Fertilizers and Its Effect on Timeliness of Fertilizers Decomposition Resulting in Lost of Nitrogen Through Nitrous Oxide Emissions from Soil

2018 ◽  
Vol 66 (3) ◽  
pp. 691-700
Author(s):  
Koloman Krištof ◽  
Tomáš Šima ◽  
Ladislav Nozdrovický ◽  
Ján Jobbágy ◽  
Jan Mareček ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Production ◽  
Agricultural Practices ◽  
Nitrogen Fertilizers ◽  
Nitrous Oxide Emissions ◽  
Time Intervals ◽  
Gas Emissions ◽  
Calcium Ammonium Nitrate

Fertilizers are an important tool to maintain soil fertility and as an enhancement for the efficient crop production. The system of fertilizers application affects the final dose and commonly causes local overdosing or insuficient spatial distribution of fertilizers which are a very important source of nitrous oxide emissions (N2O) from the soil into the atmospher observation of such phenomenon are among the key factors defining environmental impacts of agriculture. A study was conducted to observe the effect of application dose of fertilizer on N2O emission from the soil. CAN (Calcium ammonium nitrate – consist of 27 % nitrogen) was spread by a fertiliser spreader Kuhn Axera 1102 H-EMC aggregated with a tractor John Deere 6150 M. Incorporation of fertilizer into the soil was done by power harrow Pöttinger Lion 302. The application dose was set at 0, 100, 200 and 300 kg.ha–1 while monitoring points were selected at the base of this application doses in respective places. Measurements were conducted at time intervals 7, 14, 21 and 28 days after fertiliser application and following incorporation. Nitrous oxide emissions were measured by field gas monitor set INNOVA consisting of a photoacoustic gas monitor INNOVA 1412 and a multipoint sampler INNOVA 1309. Statistically significant differences was found among time intervals and among the application dose (p > 0.05). It was observed that the application dose of selected fertilizers has the direct effect on nitrous oxide (N2O) emissions released from soil into the atmosphere. An increase of greenhouse gas emissions was observed in range from 0.83 to 152.33 %. It can be concluded that the local overdose of fertilizers negatively affects environmental impact of agricultural practices at greenhouse gas emissions (GHGs).

scholarly journals Ammonium-Based Compound Fertilisers Mitigate Nitrous Oxide Emissions in Temperate Grassland

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1712
Author(s):  
Amanuel W. Gebremichael ◽  
Niharika Rahman ◽  
Dominika J. Krol ◽  
Patrick J. Forrestal ◽  
Gary J. Lanigan ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
N Uptake ◽  
Temperate Grassland ◽  
Nitrous Oxide Emissions ◽  
Anthropogenic Source ◽  
N2o Emissions ◽  
Moisture Condition ◽  
Calcium Ammonium Nitrate ◽  
Soil Moisture Condition ◽  
Long Term Study

Nitrogen fertiliser application represents the largest anthropogenic source of nitrous oxide (N2O) emissions, and the magnitude of these emissions is dependent on the type of fertilisers applied in the agroecosystems. Despite N-P-K compound fertilisers being commonly used in agricultural soils, a lack of information exists regarding their effects on N2O emissions. This study aims at examining the effects of different commonly used N-P-K compound fertiliser formulations with contrasting nitrate to ammonium ratios (0.05 to 0.88) on N2O emissions, yield, and nitrogen use efficiency (NUE) in temperate grassland and to compare these variables with common straight N fertilisers. Compound fertilisers with varying NPK inclusion rates (18-6-12, 10-10-20, 24-2.2-4.5, and 27-2.5-5), and calcium ammonium nitrate (CAN) and urea + N-(n-butyl) thiophosphoric triamide (NBPT) were applied at 80 kg N ha−1 to experimental plots in managed grassland on two occasions in a growing season. Fluxes of N2O during the experiment period, yield and NUE following two harvests were measured. The cumulative N2O emission from urea + NBPT, 18-6-12, 10-10-20, and 24-2.2-4.5 treatments were significantly reduced by 44%, 43%, 37%, and 31% compared with CAN treatment under conducive soil moisture condition. Under the same soil condition, 18-6-12 and 10-10-20 treatments showed higher yield, N uptake, and NUE although did not significantly differ from the other fertiliser treatments. Our results suggest that ammonium-based compound fertilisers have a potential to reduce N2O emissions while maintaining yields. Further long-term study is needed to capture the full magnitude of variations in N2O emissions, including ammonia (NH3) volatilization from nitrate and ammonium-based compound fertiliser applications from multiple soil types and under different climatic conditions.

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