Abstract
For many years, deficiencies in selenium (Se) and, sometimes, sulphur (S) have been observed in populations in most European countries and other parts of the world. This study aimed to determine the effect of selenium (0, 10 and 20 g Se ha−1) and the date of its application (in the tillering phase—BBCH 22–24 and in the stem elongation phase—BBCH 31–34) and sulphur application (0, 15 and 30 kg S ha−1) on the content of various forms of nitrogen (total nitrogen, protein nitrogen, ammonium nitrogen, and nitrate nitrogen) in winter spelt wheat and winter common wheat. Selenium application influenced nitrogen distribution in wheat. In spelt, grain total-N decreased by 4%, while common wheat straw increased by 13%. Application timing had no significant effect on total-N. Sulphur slightly raised total-N in common wheat grain and straw. Selenium reduced protein-N in spelt grain by 7% but increased it in common wheat straw by 18%. Ammonium-N in straw rose by 24–27%, while nitrate-N declined in grain and straw of both species. Sulphur-enhanced mineral N forms (ammonium-N by 6–16%, nitrate-N by 7–24%), especially in the early stages. Se–S fertilization strategies should consider their competitive uptake and impact on N metabolism.
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Claims 10
Claim · model-written summary
Selenium reduced grain total nitrogen in spelt by 4%.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- spelte0
- Organ / stage
- graine0
- Treatment
- Seleniume1
- Outcome
- grain total-Ne0
- Direction
- decreasede0
- Value
- 4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In spelt, grain total-N decreased by 4%, while common wheat straw increased by 13%.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Common wheat straw total nitrogen increased by 13% after selenium application.
- Taxon
- WheatTriticum aestivumt0
- Material
- common wheate0
- Organ / stage
- strawe0
- Treatment
- Seleniume1
- Outcome
- strawe0
- Direction
- increasede0
- Value
- 13%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In spelt, grain total-N decreased by 4%, while common wheat straw increased by 13%.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Application timing had no significant effect on total nitrogen.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Application timinge0
- Outcome
- total-Ne0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application timing had no significant effect on total-N.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Sulphur slightly increased total nitrogen in common wheat grain and straw.
- Taxon
- WheatTriticum aestivumt0
- Material
- common wheate0
- Treatment
- Sulphure0
- Outcome
- total-N in common wheat grain and strawe0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulphur slightly raised total-N in common wheat grain and straw.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Selenium reduced protein nitrogen in spelt grain by 7%.
- Taxon
- WheatTriticum aestivumt0
- Material
- spelte0
- Treatment
- Seleniume0
- Outcome
- protein-N in spelt graine0
- Direction
- reducede0
- Value
- 7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium reduced protein-N in spelt grain by 7% but increased it in common wheat straw by 18%.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Selenium increased protein nitrogen in common wheat straw by 18%.
- Taxon
- WheatTriticum aestivumt0
- Material
- common wheate0
- Treatment
- Seleniume0
- Outcome
- common wheat strawe0
- Direction
- increasede0
- Value
- 18%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium reduced protein-N in spelt grain by 7% but increased it in common wheat straw by 18%.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Straw ammonium nitrogen rose by 24–27%.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- strawe0
- Treatment
- Seleniume1
- Outcome
- Ammonium-N in strawe0
- Direction
- rosee0
- Value
- 24–27%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ammonium-N in straw rose by 24–27%, while nitrate-N declined in grain and straw of both species.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Nitrate nitrogen declined in grain and straw of both species.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Seleniume1
- Outcome
- nitrate-Ne0
- Direction
- declinede0
- Qualifier
- grain and straw of both speciese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ammonium-N in straw rose by 24–27%, while nitrate-N declined in grain and straw of both species.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Sulphur increased ammonium nitrogen by 6–16%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulphur-enhanced mineral N forms (ammonium-N by 6–16%, nitrate-N by 7–24%), especially in the early stages.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
Claim · model-written summary
Sulphur increased nitrate nitrogen by 7–24%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulphur-enhanced mineral N forms (ammonium-N by 6–16%, nitrate-N by 7–24%), especially in the early stages.”
t0“Wheat”
e1“Selenium application influenced nitrogen distribution in wheat.”
The same questions in other papers
selenium atom · nutrient: content · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
24 papers more in this group
See all 28 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.