Abstract
Field studies were conducted for 3 yr (2001 to 2003) at two irrigated sites in southern Alberta to determine if post-emergence N application (38 kg N ha -1 ) was warranted for durum (Triticum turgidum L.) and bread wheat (T. aestivum) in soils with relatively high N. Greater efficacy occurred with in-crop surface-applied granular ammonium nitrate (AN) compared with foliar-applied urea-ammonium-nitrate (UAN) solution. Early AN application usually improved grain yield compared with the fertilized control (38 k g N ha -1 applied at seeding), while late application reduced grain yield, but increased grain protein concentration and end-use quality. Key words: Triticum turgidum, Triticum aestivum, nitrogen fertilizer, foliar, timing, split N, grain protein concentration
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Claims 4
Claim · model-written summary
Early ammonium nitrate application usually improved grain yield compared with the fertilized control.
Verbatim
t0“irrigated durum and bread wheat”
e1“Early AN application usually improved grain yield compared with the fertilized control (38 k g N ha -1 applied at seeding), while late application reduced grain yield, but increased grain protein concentration and end-use quality”
e2“Field studies were conducted for 3 yr (2001 to 2003) at two irrigated sites in southern Alberta”
Claim · model-written summary
Late nitrogen application reduced grain yield.
Verbatim
t0“irrigated durum and bread wheat”
e1“Early AN application usually improved grain yield compared with the fertilized control (38 k g N ha -1 applied at seeding), while late application reduced grain yield, but increased grain protein concentration and end-use quality”
e2“Field studies were conducted for 3 yr (2001 to 2003) at two irrigated sites in southern Alberta”
Claim · model-written summary
Late nitrogen application increased grain protein concentration and end-use quality.
Verbatim
t0“irrigated durum and bread wheat”
e1“Early AN application usually improved grain yield compared with the fertilized control (38 k g N ha -1 applied at seeding), while late application reduced grain yield, but increased grain protein concentration and end-use quality”
Claim · model-written summary
Surface-applied granular ammonium nitrate gave greater efficacy than foliar-applied urea-ammonium-nitrate solution.
Verbatim
t0“irrigated durum and bread wheat”
e3“Greater efficacy occurred with in-crop surface-applied granular ammonium nitrate (AN) compared with foliar-applied urea-ammonium-nitrate (UAN) solution”
The same questions in other papers
ammonium nitrate · yield · Triticum aestivum (wheat)Positive and negative results
48 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
50 papers more in this group
See all 54 papers →ammonium nitrate · yield · Triticum turgidum (rivet wheat)Results agree
1 paper in the same direction as this paper
- positive
ammonium nitrate · control · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.