Impact of rainfall to the effectiveness of pig slurry shallow injection method for NH3 mitigation in a Mediterranean soil.

A - Papers appearing in refereed journals

Sanz-Cobena, A., Misselbrook, T. H., Hernaiz, P. and Vallejo, A. 2019. Impact of rainfall to the effectiveness of pig slurry shallow injection method for NH3 mitigation in a Mediterranean soil. Atmospheric Environment. 216, p. 116913.

AuthorsSanz-Cobena, A., Misselbrook, T. H., Hernaiz, P. and Vallejo, A.
Abstract

Ammonia emission from fertilized cropping systems is an important concern for stakeholders, particularly in regions with high livestock densities producing large amounts of manure. Application of pig slurries can result in very large losses of N through NH3 volatilization, thus decreasing the N use efficiency (NUE) of the applied manure. Shallow incorporation has been shown to significantly abate these losses. In this field study, we assessed the impact of contrasting weather conditions on the effectiveness of shallow injection to abate NH3 emissions from pig slurry application to a Mediterranean soil. As potential trade-offs of NH3 abatement, greenhouse gas emissions were also measured under conditions of high soil moisture. Compared with surface application of slurry, shallow injection effectively and significantly decreased NH3 losses independently of weather conditions, but reductions of NH3 emission were greater after heavy rainfall. In contrast, under these conditions, shallow injection triggered higher emissions of N2O and CH4. Our findings reinforce the idea that any single-pollutant abatement strategy needs to be designed and assessed in a regional context and considering potential trade-offs in the form of other pollutants.

KeywordsAmmonia; Micrometeorological method; Slurry incorporation; Trade-offs; Nitrous oxide; Mediterranean agroecosystems
Year of Publication2019
JournalAtmospheric Environment
Journal citation216, p. 116913
Digital Object Identifier (DOI)doi:10.1016/j.atmosenv.2019.116913
Open accessPublished as non-open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeS2N - Soil to Nutrition - Work package 2 (WP2) - Adaptive management systems for improved efficiency and nutritional quality
Output statusE-publication ahead of print
PublisherElsevier
ISSN1352-2310

Permalink - https://repository.rothamsted.ac.uk/item/979y8/impact-of-rainfall-to-the-effectiveness-of-pig-slurry-shallow-injection-method-for-nh3-mitigation-in-a-mediterranean-soil

Restricted files

Publisher's version

Under embargo indefinitely

0 total views
0 total downloads
0 views this month
0 downloads this month