The poster that was voted ‘Most Noteworthy’ by delegates at the 2019 IFS Agronomic Conference was by Ian Kavanagh et al. from Teagasc, the Irish Government extension service. It was titled ‘Mitigation of ammonia emissions from stored cattle slurry using waste acidifiers and chemical amendments’.
The poster described experimental work to measure the effectiveness of four different chemical acidifiers and seven waste materials at reducing emissions when added to stored slurry. Overall, the chemical acidifiers were more effective than the waste materials, with Ferric chloride being the best. Most of the waste materials acted to reduce emissions to some degree. Intriguingly, sugar beet molasses generated both the best result of the waste materials, when used at an inclusion rate of 5%, and also the worst, when used at an inclusion rate of 7%.
Society Members can download a pdf of this poster from the Member area of the website. See here for joining information.