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sector:agriculture:start [2026/02/09 15:59] – [Reasons for recalculations] updated roesemannsector:agriculture:start [2026/03/18 16:56] (current) – vosen
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 No heavy metal emissions are reported. No heavy metal emissions are reported.
  
-In 2024 the agricultural sector emitted 484.0 Gg of NH<sub>3</sub>, 98,0  Gg of NO<sub>x</sub>, 300,6 Gg of NMVOC, 60,4 Gg of TSP, 34,7 Gg of PM<sub>10</sub> and 5.3 Gg of PM<sub>2.5</sub> and 0.30 kg HCB. The trend from 1990 onwards is shown in the graph below. The sharp decrease of emissions from 1990 to 1991 is due to a reduction of livestock population in the New Länder (former GDR) following the German reunification. The increase of NH<sub>3</sub> emissions since 2005 is mostly due to the expansion of anaerobic digestion of energy crops, especially the application of the digestion residues. This emission source also affects NO<sub>x</sub> emissions. The decrease of NH<sub>3</sub> emissions since 2015 is mostly due to a decline in the amounts of mineral fertilizer sold and stricter regulations concerning application of urea fertilizers, as well as declining livestock numbers Further details concerning trends can be found in Vos et al. (2026) chapter “Emissions results submission 2026”. +In 2024 the agricultural sector emitted 484.0 Gg of NH<sub>3</sub>, 98,0  Gg of NO<sub>x</sub>, 300,6 Gg of NMVOC, 60,4 Gg of TSP, 34,7 Gg of PM<sub>10</sub> and 5.3 Gg of PM<sub>2.5</sub> and 0.53 kg HCB. The trend from 1990 onwards is shown in the graph below. The sharp decrease of emissions from 1990 to 1991 is due to a reduction of livestock population in the New Länder (former GDR) following the German reunification. The increase of NH<sub>3</sub> emissions since 2005 is mostly due to the expansion of anaerobic digestion of energy crops, especially the application of the digestion residues. This emission source also affects NO<sub>x</sub> emissions. The decrease of NH<sub>3</sub> emissions since 2015 is mostly due to a decline in the amounts of mineral fertilizer sold and stricter regulations concerning application of urea fertilizers, as well as declining livestock numbers Further details concerning trends can be found in Vos et al. (2026) chapter “Emissions results submission 2026”. 
  
-As depicted in the diagram below, in 2023 92.6 % of Germany’s total NH<sub>3</sub> emissions derived from the agricultural sector, while nitric oxides reported as NO<sub>x</sub> contributed 11.8 % and NMVOC 30.9 % to the total NO<sub>x</sub> and NMVOC emissions of Germany. Regarding the emissions of PM<sub>2.5</sub>, PM<sub>10</sub> and TSP the agricultural sector contributed 7.0 % (PM<sub>2.5</sub>), 19.5 % (PM<sub>10</sub>) and 18.3 % (TSP) to the national particle emissions. HCB emissions of pesticide use contributed 7.6 % to the total German emissions. +As depicted in the diagram below, in 2024 91.7 % of Germany’s total NH<sub>3</sub> emissions derived from the agricultural sector, while nitric oxides reported as NO<sub>x</sub> contributed 12.1 % and NMVOC 31.5 % to the total NO<sub>x</sub> and NMVOC emissions of Germany. Regarding the emissions of PM<sub>2.5</sub>, PM<sub>10</sub> and TSP the agricultural sector contributed 7.1 % (PM<sub>2.5</sub>), 20.4 % (PM<sub>10</sub>) and 19.6 % (TSP) to the national particle emissions. HCB emissions of pesticide use contributed 13.5 % to the total German emissions. 
  
 ====Mitigation measures==== ====Mitigation measures====
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   * covering of slurry storage: agricultural censuses survey the prevalence of different slurry covers. Germany uses distinct emission factors for the different covers.    * covering of slurry storage: agricultural censuses survey the prevalence of different slurry covers. Germany uses distinct emission factors for the different covers. 
  
-  * use of urease inhibitors: for urea fertilizer the German fertilizer ordinance prescribes the use of urease inhibitors or the direct incorporation into the soil from 2020 onwards. The NH<sub>3</sub> emission factor for urea fertilizers is therefore reduced by 70% from 2020 onwards for the direct incorporation, according to Bittman et al. (2014, Table 15)((Bittman, S., Dedina, M., Howard C.M., Oenema, O., Sutton, M.A., (eds) (2014): Options for Ammonia Mitigation. Guidance from the UNECE task Force on Reactive Nitrogen. Centre for Ecology and Hydrology, Edinburgh, UK)). For the use of urease inhibitors the NH<sub>3</sub> emission factor is reduced by 60% from 2020 onwards, see Rösemann et al. (2025), Chapter 5.2.1.2.+  * use of urease inhibitors: for urea fertilizer the German fertilizer ordinance prescribes the use of urease inhibitors or the direct incorporation into the soil from 2020 onwards. The NH<sub>3</sub> emission factor for urea fertilizers is therefore reduced by 70% from 2020 onwards for the direct incorporation, according to Bittman et al. (2014, Table 15)((Bittman, S., Dedina, M., Howard C.M., Oenema, O., Sutton, M.A., (eds) (2014): Options for Ammonia Mitigation. Guidance from the UNECE task Force on Reactive Nitrogen. Centre for Ecology and Hydrology, Edinburgh, UK)). For the use of urease inhibitors the NH<sub>3</sub> emission factor is reduced by 60% from 2020 onwards, see Vos et al. (2026), Chapter 5.2.1.2.
  
 For NO<sub>x</sub> and NMVOC no mitigation measures are included.  For NO<sub>x</sub> and NMVOC no mitigation measures are included. 
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 {{ :sector:iir_nfr3_from_2005.png?nolink&direct&700 |NFR 3 emission trends per category, from 2005 }} {{ :sector:iir_nfr3_from_2005.png?nolink&direct&700 |NFR 3 emission trends per category, from 2005 }}
  
-__Contribution of NFRs 1 to 6 to the National Totals, for 2024__+__Contribution of NFRs 1 to 6 to the National Totals__
 {{ :sector:iir_mp_sharesnfr_incltrans.png?direct&direct&700 | Percental contributions of NFRs 1 to 6 to the National Totals}} {{ :sector:iir_mp_sharesnfr_incltrans.png?direct&direct&700 | Percental contributions of NFRs 1 to 6 to the National Totals}}
  
 ===== Specific QA/QC procedures for the agriculture sector===== ===== Specific QA/QC procedures for the agriculture sector=====
  
-Numerous input data were checked for errors resulting from erroneous transfer between data sources and the tabular database used for emission calculations. The German IEFs and other data used for the emission calculations were compared with EMEP default values and data of other countries (see Vos et al., 2024). Changes of data and methodologies are documented in detail (see Vos et al. 2024, Chapter 1.3). +Numerous input data were checked for errors resulting from erroneous transfer between data sources and the tabular database used for emission calculations. The German IEFs and other data used for the emission calculations were compared with EMEP default values and data of other countries (see Vos et al., 2026). Changes of data and methodologies are documented in detail (see Vos et al. 2026, Chapter 1.3). 
  
-A comprehensive review of the emission calculations was carried out by comparisons with the results of Submission 2023 and by plausibility checks. +A comprehensive review of the emission calculations was carried out by comparisons with the results of Submission 2025 and by plausibility checks. 
  
 Once emission calculations with the German inventory model Py-GAS-EM are completed for a specific submission, activity data (AD) and implied emission factors (IEFs) are transferred to the CSE database (Central System of Emissions) to be used to calculate the respective emissions within the CSE. These CSE emission results are then cross-checked with the emission results obtained by Py-GAS-EM.  Once emission calculations with the German inventory model Py-GAS-EM are completed for a specific submission, activity data (AD) and implied emission factors (IEFs) are transferred to the CSE database (Central System of Emissions) to be used to calculate the respective emissions within the CSE. These CSE emission results are then cross-checked with the emission results obtained by Py-GAS-EM.