Abstract

Miller, J. J., Beasley, B. W., Drury, C. F. and Zebarth, B. J. 2012. Denitrification during the growing season as influenced by long-term application of composted versus fresh feedlot manure. Can. J. Soil Sci. 92: 865–882. Application of composted (new practice) rather than fresh (current industry standard) feedlot manure to cropland is increasing in Alberta. We hypothesized that fall application of composted feedlot manure to cropland may lower growing season denitrification losses of nitrogen (N) to the atmosphere compared with fresh feedlot manure because of lower carbon (C) availability from labile C (water-soluble C, acetic acid) and total organic C. Treatments included soil amended with either fresh (FM) or composted manure (CM) containing straw bedding applied annually at 77 Mg ha−1 yr−1 from 1998 to 2009, as well as an unamended control. Surface soil denitrification was measured every 2 wk (May 20 to Sep. 25) for 4 yr (2007–2010) on undisturbed soil cores (0- to 10-cm depth) that were incubated in...

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.