USDFRC webinar: Impacts of low-disturbance manure application on ammonia, greenhouse gas emissions – March 16
U.S. Dairy Forage Research Center webinar series
Impacts of Low-Disturbance Manure Application on Ammonia and Greenhouse Gas Emissions
Jessica Sherman
Biological Science Lab Technician
Wednesday, March 16 at 3 p.m. CDT
Connection details:
https://www.zoomgov.com/j/16141396271
646-828-7666; ID: 161 4139 6271
Abstract: Manure applications contribute to greenhouse gas and ammonia emissions. Losses of ammonia and nitrous oxide are an economic loss of nitrogen to farms and along with methane and carbon dioxide are important components of on farm nitrogen and carbon cycling. Few studies have examined the effects of low-disturbance manure incorporation compared to broadcast and conventional incorporation on these emissions. We have been measuring ammonia and greenhouse gases in corn and alfalfa systems since 2013 and have found that incorporating manure significantly reduces ammonia losses but may increase nitrous oxide emissions over broadcast levels; overall differences in nitrous oxide and methane losses are dependent on soil temperature and moisture conditions particularly at the time of application.