Abstract
Gao, X. and Grant, C. A. 2011. Interactive effect of N fertilization and tillage management on Zn biofortification in durum wheat ( Triticum durum ). Can. J. Plant Sci. 91: 951–960. A 3-yr field study was conducted at two locations in southwestern Manitoba, Canada, to determine the interactive effect of application of four sources of N fertilizer and two tillage management systems on grain Zn concentration of durum wheat. There was a significant year-to-year variation in grain yield and grain Zn concentration, indicating a strong environmental influence. Soil type also had a dominating effect, with grain Zn concentration generally being higher at the clay loam location than the fine sandy loam location, reflecting the native soil Zn status. Tillage management showed little influence on grain Zn, suggesting that reduced tillage practices can be adopted by local farmers without decreasing mineral concentrations in grain. Compared with the control treatment, which did not receive extra N fertilizer, N fertilization at 60 kg ha −1 decreased grain Zn concentration in 4 of 6 site-years. Grain Zn accumulation was, however, generally not affected by extra N fertilization, in spite of a positive fertilization effect on grain yield. The four N sources did not differ in their effect on grain yield and grain Zn, indicating that at the rate of N applied there were no differential fertilizer source effects on Zn availability. The results of the present study suggest that for wheat production on Canadian prairies, a regular N fertilization rate using the currently registered cultivars is not likely to produce wheat grain that meets the recommended dietary allowance for Zn. Application of Zn fertilizer, in combination with optimum N fertilization or other agronomic practices that can increase grain Zn, is required to produce improved grain quality for human health.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Grain yield and grain zinc concentration varied significantly between years.
- Taxon
- durum wheat
Triticum turgidum subsp. durumt0 - Outcome
- grain yield and grain Zn concentratione0
- Setting
- year-to-yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant year-to-year variation in grain yield and grain Zn concentration, indicating a strong environmental influence.”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
Grain zinc concentration was generally higher at the clay loam site.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Outcome
- grain Zn concentratione0
- Direction
- highere0
- Comparator
- fine sandy loam locatione0
- Setting
- clay loam locatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain Zn concentration generally being higher at the clay loam location than the fine sandy loam location, reflecting the native soil Zn status.”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
Tillage management had little influence on grain zinc.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- Tillage managemente0
- Outcome
- grain Zne0
- Direction
- little influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tillage management showed little influence on grain Zn”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
Nitrogen fertilization at 60 kg ha −1 decreased grain zinc concentration in four of six site years relative to the control.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- N fertilization at 60 kg ha −1e0
- Outcome
- grain Zn concentratione0
- Direction
- decreasede0
- Value
- 4 of 6 site-yearse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control treatment, which did not receive extra N fertilizer, N fertilization at 60 kg ha −1 decreased grain Zn concentration in 4 of 6 site-years.”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
Extra nitrogen fertilization generally did not affect grain zinc accumulation.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- extra N fertilizatione0
- Outcome
- Grain Zn accumulatione0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain Zn accumulation was, however, generally not affected by extra N fertilization”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
Nitrogen fertilization increased grain yield.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- fertilizatione0
- Outcome
- grain yielde0
- Direction
- positivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a positive fertilization effect on grain yield”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
The four nitrogen sources did not differ in their effect on grain yield and zinc.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- four N sourcese0
- Outcome
- grain yield and grain Zne0
- Direction
- did not differe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The four N sources did not differ in their effect on grain yield and grain Zn”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
Regular nitrogen fertilization using current cultivars is unlikely to produce wheat grain meeting the zinc dietary allowance on the Canadian prairies.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Outcome
- not likely to produce wheat grain that meets the recommended dietary allowance for Zne0
- Setting
- Canadian prairiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for wheat production on Canadian prairies, a regular N fertilization rate using the currently registered cultivars is not likely to produce wheat grain that meets the recommended dietary allowance for Zn.”
t0“durum wheat (Triticum durum)”
Claim · model-written summary
Zinc fertilizer with optimum nitrogen or other grain zinc raising practices is recommended to improve grain quality.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- Application of Zn fertilizer, in combination with optimum N fertilizatione0
- Outcome
- improved grain qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Zn fertilizer, in combination with optimum N fertilization or other agronomic practices that can increase grain Zn, is required to produce improved grain quality for human health.”
t0“durum wheat (Triticum durum)”
The same questions in other papers
fertilization · yield · Triticum turgidum (rivet wheat)Results differ
67 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
75 papers more in this group
See all 79 papers →fertilization · nutrient: content · Triticum turgidum (rivet wheat)Positive and negative results
5 papers in the same direction as this paper · 14 in the opposite direction
- positive
- no effect
- positive
16 papers more in this group
See all 20 papers →nitrogen · nutrient: content · Triticum turgidum (rivet wheat)Positive and negative results
2 papers in the same direction as this paper · 17 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 papers →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.