1 / 8

Ammonia emissions from fertiliser

This article discusses the developments and implications of ammonia emissions from fertilizer, including the revision of methodologies and the incorporation of scientific studies into the emission database. Factors affecting ammonia emissions, such as fertilizer type, soil pH, application method, crop, and environmental conditions, are also examined. The article highlights the need for further investigation into systematic differences between studies and the measurement of ammonia emissions from manure.

fredn
Download Presentation

Ammonia emissions from fertiliser

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ammonia emissions from fertiliser Nick Hutchings

  2. Developments since last meeting • Revision was not completed in time for Zagreb • Ad hoc group formed to review and accept/reject revision • Revised methodology accepted

  3. Developments since last meeting • Revision was not completed in time for Zagreb • Ad hoc group formed to review and accept/reject revision • Revised methodology accepted

  4. Developments since last meeting • Revision was not completed in time for Zagreb • Ad hoc group formed to review and accept/reject revision • Revised methodology accepted • Pan, B. B., et al. (2016) Ammonia volatilization from synthetic fertilizers and its mitigation strategies: A global synthesis. Agriculture Ecosystems & Environment223: 283-289. • Focus on fertiliser type and abatement measures

  5. Developments since last meeting • Revision was not completed in time for Zagreb • Ad hoc group formed to review and accept/reject revision • Revised methodology accepted • Pan, B. B., et al. (2016). "Ammonia volatilization from synthetic fertilizers and its mitigation strategies: A global synthesis." Agriculture Ecosystems & Environment223: 283-289. • Focus on fertiliser type and abatement measures • Identified further scientific studies • Incorporated into emission database

  6. Developments since last meeting • Revision was not completed in time for Zagreb • Ad hoc group formed to review and accept/reject revision • Revised methodology accepted • Pan, B. B., et al. (2016) Ammonia volatilization from synthetic fertilizers and its mitigation strategies: A global synthesis. Agriculture Ecosystems & Environment223: 283-289. • Focus on fertiliser type and abatement measures • Identified further scientific studies • Incorporated into emission database • Re-analysed the data

  7. Factors significantly affecting ammonia emission • Fertiliser type • Soil pH • Application method (e.g. broadcast, incorporated) • Crop (none, grass, cereal, maize, rice, trees) • Air temperature or rainfall (almost both)

  8. Implications for Guidebook • No immediate changes  • Consider revision as part of the Guidebook maintenance plan • Will publish the revised model • Make available as a Tier 3 method • Note – data source was a highly significant variable • Systematic differences between studies that cannot be explained by the variables available • Included location (indoor/outdoor) and measurement method • Similar situation for ammonia emissions from manure • Needs further investigation

More Related