A comparison of no-till winter wheat response to seed-placed and broadcast nitrogen fertilizer placement
| dc.contributor.author | Brydon, J. | |
| dc.contributor.author | Fowler, D.B. | |
| dc.date.accessioned | 2018-09-20T17:05:02Z | |
| dc.date.available | 2018-09-20T17:05:02Z | |
| dc.date.issued | 1989-02-16 | |
| dc.description.abstract | Winter wheat (Triticum aestivum L.) can be successfully overwintered in most regions of the Canadian prairies if it is no-till sown into standing stubble immediately after harvest of the previous crop. Soil nitrogen (N) is usually deficient in this production system and N fertilization is necessary to optimize yield and maintain minimum quality standards. In the present study, the effect of seed-placed (SP) , early spring broadcast (BC), and SP+BC combinations of ammonium nitrate fertilizer (AN) on winter survival, grain yield, and protein production of winter wheat was investigated in 15 field trials conducted over a wide range of soil types and environmental conditions in Saskatchewan. Ammonium nitrate fertilizer placed in a 20 mm wide band with "Norstar" winter wheat seed produced average grain yield-N responses for 67 and 101 kg N ha-1 treatments that were only 86 and 70 % of comparable BC treatments, respectively. Average grain protein yleld-N responses for the 67 and 101 kg ha-1 SP N treatments were 86 and 73 % of comparable BC treatments, respectively. Changes in grain protein concentration due to increased rate of SP N were small. Similar grain and grain protein yield responses for 34 kg N ha-1 SP and BC treatments indicated that AN could be seed placed at low rates without reduced N-use efficiency. However, significant reductions in winter survival potential in all trials where differential winter-kill occurred suggested that even rates as low as 34 kg N ha-1 SP AN should be avoided when cultivars with marginal winter hardiness are utilized. | en_US |
| dc.description.version | Non-Peer Reviewed | |
| dc.identifier.uri | http://hdl.handle.net/10388/10754 | |
| 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 | A comparison of no-till winter wheat response to seed-placed and broadcast nitrogen fertilizer placement | en_US |
| dc.type | Presentation | en_US |