Abstract
ABSTRACT The objective of this experiment was to assess the effect of interaction between early and late nitrogen (N) fertilization on grain yield, protein content, and distribution of N between organs of winter wheat. Wheat was grown in pots in vegetation house. Experiment has been carried on in three years 2001–2003, each year in four replications. Wheat supplied with 0.9, 1.4, 1.9, 2.4, and 2.9 g N/pot was top dressed at anthesis by 0.85 g labeled nitrogen 15N/pot. Plants supplied with 0.9 g N/pot enhanced grain yield by 28% and gluten content by 62% and plant supplied with 2.9 g N/pot by 27% and 13%, respectively. The amount of 15N fertilizer stored in plant organs decreased proportionally to the amount of previously accumulated nitrogen, but the share of 15N in plant parts was almost constant. Grain accumulated about 86% of total 15N taken up by plants. Irrespective on nitrogen status prior to anthesis, about 50% of 15N has been used for gluten formation. The percentage of 15N recovery fraction ranged from 79% to 86%.
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Claims 8
Claim · model-written summary
Winter wheat supplied with 0.9 g N/pot enhanced grain yield by 28%.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- 0.9 g N/pote0
- Outcome
- grain yielde0
- Direction
- enhancede0
- Value
- 28%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants supplied with 0.9 g N/pot enhanced grain yield by 28% and gluten content by 62%”
t0“Winter Wheat”
Claim · model-written summary
Winter wheat supplied with 0.9 g N/pot enhanced gluten content by 62%.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- 0.9 g N/pote0
- Outcome
- gluten contente0
- Direction
- enhancede0
- Value
- 62%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants supplied with 0.9 g N/pot enhanced grain yield by 28% and gluten content by 62%”
t0“Winter Wheat”
Claim · model-written summary
Winter wheat supplied with 2.9 g N/pot enhanced grain yield by 27%.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- 2.9 g N/pote0
- Outcome
- grain yielde0
- Direction
- enhancede0
- Value
- 27%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced grain yield by 28% and gluten content by 62% and plant supplied with 2.9 g N/pot by 27%”
t0“Winter Wheat”
Claim · model-written summary
Winter wheat supplied with 2.9 g N/pot enhanced gluten content by 13%.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- 2.9 g N/pote0
- Outcome
- gluten contente0
- Direction
- enhancede0
- Value
- 13%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced grain yield by 28% and gluten content by 62% and plant supplied with 2.9 g N/pot by 27% and 13%”
t0“Winter Wheat”
Claim · model-written summary
The amount of 15N fertilizer stored in plant organs decreased in proportion to the amount of previously accumulated nitrogen.
- Taxon
- Winter WheatTriticum aestivumt0
- Compound
- previously accumulated nitrogene0
- Outcome
- amount of 15N fertilizer stored in plant organse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount of 15N fertilizer stored in plant organs decreased proportionally to the amount of previously accumulated nitrogen”
t0“Winter Wheat”
Claim · model-written summary
The share of 15N in plant parts was almost constant.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- share of 15N in plant partse0
- Direction
- almost constante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the share of 15N in plant parts was almost constant”
t0“Winter Wheat”
Claim · model-written summary
Grain accumulated about 86% of the total 15N taken up by the plants.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- Graine0
- Outcome
- total 15N taken up by plantse0
- Value
- about 86%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain accumulated about 86% of total 15N taken up by plants”
t0“Winter Wheat”
Claim · model-written summary
The 15N recovery fraction ranged from 79% to 86%.
- Taxon
- Winter WheatTriticum aestivumt0
- Outcome
- 15N recovery fractione0
- Value
- 79% to 86%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of 15N recovery fraction ranged from 79% to 86%”
t0“Winter Wheat”
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