Availability of soil nitrogen released from pea and lentil residue to subsequent cereal crops under reduced tillage
| dc.contributor.author | Adderley, D.R. | |
| dc.contributor.author | Schoenau, J.J. | |
| dc.contributor.author | Holm, F.A. | |
| dc.date.accessioned | 2018-09-10T12:52:17Z | |
| dc.date.available | 2018-09-10T12:52:17Z | |
| dc.date.issued | 1998-02-19 | |
| dc.description.abstract | The release of N from legume crop residues in the field can potentially be an important nutrient source for succeeding cereal crops, particularly in soils which are N deficient. Field studies were conducted in 1996 on two soils of contrasting textures in the Dark Brown Soil Zone of Saskatchewan, a 1) Sutherland clay loam (Kernen), and a 2) Bradwell sandy loam (Goodale), which were previously cropped to pea and lentil in order to compare the effects of legume stubble type on soil N supply. Spring wheat was direct seeded in 1997 in order to compare yields and crop N uptake on pea and lentil stubble. Pre-seeding soil samples were taken and analyzed for NH, and NO,. Pre-seeding available N amounts were significantly greater at Kernen, corresponding to higher organic matter levels. Supply rates of NO, during the growing season were measured using anion exchange resin membranes (PRS- probes). Higher overall supply rates were measured at Kernen as compared to Goodale, while significantly greater supply rates on pea stubble were observed at Goodale only. Both wheat yield and N uptake were significantly greater at Kernen as a function of higher N availability. Mean N uptake and yields were generally higher under pea stubble than lentil at both sites but not significantly different at the 10% level. | en_US |
| dc.description.version | Non-Peer Reviewed | |
| dc.identifier.uri | http://hdl.handle.net/10388/10162 | |
| 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.subject | legume | en_US |
| dc.subject | crop rotation | en_US |
| dc.subject | nitrogen uptake | en_US |
| dc.subject | nitrogen supply | en_US |
| dc.subject | anion exchange membrane | en_US |
| dc.title | Availability of soil nitrogen released from pea and lentil residue to subsequent cereal crops under reduced tillage | en_US |
| dc.type | Poster Presentation | en_US |