Improving organic C and N in a sulphur-deficient soil with S fertilization
dc.contributor.author | Malhi, S.S. | |
dc.contributor.author | Leach, D. | |
dc.date.accessioned | 2018-07-24T01:52:02Z | |
dc.date.available | 2018-07-24T01:52:02Z | |
dc.date.issued | 2012-03-13 | |
dc.description.abstract | A field experiment was conducted over nine years (1999 to 2007 growing seasons) in northeastern Saskatchewan on a S-deficient Gray Luvisol (Typic Haplocryalf) soil to determine the relative effectiveness of N alone versus combined annual application of N (120 kg N ha-1) and S (15 kg S ha-1) fertilizers to wheat-canola rotation on storage of total organic C [TOC and N (TON), and light fraction organic C (LFOC) and N (LFON)] in soil. Compared to N alone, annual applications of S fertilizer in spring in a combination with N resulted in an increase of TOC (by 2.18 Mg C ha-1), TON (by 0.138 Mg N ha-1), LFOC (by 1018 kg C ha-1) and LFON (by 42 kg N ha-1) mass in soil. The relative increases in organic C or N due to S fertilizer application were much higher for light organic fractions (36.9% for LFOC and 27.5% for LFON) than for total organic fractions (9.2% for TOC and 7.3% for TON). The findings suggest the importance of balanced/combined application of N and S fertilizers to crops in storing more organic C and N in S-deficient soil, but further research is needed on a number of S-deficient sites. | en_US |
dc.description.version | Non-Peer Reviewed | |
dc.identifier.uri | http://hdl.handle.net/10388/9082 | |
dc.language.iso | en | en_US |
dc.relation.ispartof | Soils and Crops Workshop | |
dc.rights | Attribution-NonCommercial-NoDerivs 2.5 Canada | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.5/ca/ | * |
dc.title | Improving organic C and N in a sulphur-deficient soil with S fertilization | en_US |
dc.type | Poster Presentation | en_US |