Abstract
The objective of this field experiment was to clarify the effect of sulfur application on the absorption and translocation of nitrogen and sulfur and grain yield of winter wheat. The experiment included five sulfur application rates(S 0,37. 5,75,112. 5,and 150 kg / ha). The experiment was conducted in the Guanzhong area,Shaanxi Province,China,from October 2011 to June 2012. The results showed that sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased. In contrast,nitrogen concentrations increased,reached a maximum,and then decreased as the sulfur application rate increased. The application of sulfur fertilizer increased nitrogen and sulfur translocation from vegetative organs to grain after anthesis. The nitrogen translocation rates(71. 40%- 75. 27%) were much higher than those of sulfur(8. 52%- 27. 73%). The application of sulfur fertilizer also increased the contribution of both nitrogen and sulfur translocation to grain. The leaf nitrogen / sulfur ratios were highest at booting and then declined after anthesis. Throughout the growing season,we observed that the nitrogen / sulfur ratio decreased as the sulfur application rate increased. Correlation analysis showed that the nitrogen /sulfur ratio at the booting stage was closely related with grain yield. The study also indicated that grain yield increased as the sulfur application rate increased. Grain yield was 30. 14% higher in the sulfur 150 kg / ha treatment than in the unfertilized treatment. In conclusion,the application of sulfur fertilizer at rates between 37. 5 and sulfur150 kg / ha increased the uptake and translocation of nitrogen and sulfur. The sulfur fertilizer input also increased the number of spikes per unit area and grains per spike,therefore increasing winter wheat yield significantly.
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Claims 13
Claim · model-written summary
Sulfur concentration in winter wheat plants increased gradually as the sulfur application rate rose.
- Taxon
- winter wheat
Triticum aestivume0 - Treatment
- sulfur application ratee0
- Outcome
- sulfur concentrationse0
- Direction
- gradually increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
Claim · model-written summary
Nitrogen concentration in winter wheat increased, reached a maximum and then decreased as the sulfur application rate increased.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- sulfur application ratee1
- Outcome
- nitrogen concentrationse1
- Direction
- increased,reached a maximum,and then decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“nitrogen concentrations increased,reached a maximum,and then decreased as the sulfur application rate increased”
Claim · model-written summary
Sulfur fertilizer application increased nitrogen and sulfur translocation from vegetative organs to grain after anthesis.
- Taxon
- winter wheatTriticum aestivume0
- Organ / stage
- from vegetative organs to graine1
- Treatment
- application of sulfur fertilizere1
- Outcome
- nitrogen and sulfur translocatione1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“The application of sulfur fertilizer increased nitrogen and sulfur translocation from vegetative organs to grain after anthesis”
Claim · model-written summary
Nitrogen translocation rate in winter wheat (71.40–75.27%) was much higher than that of sulfur.
- Taxon
- winter wheatTriticum aestivume0
- Outcome
- nitrogen translocation ratese1
- Direction
- much highere1
- Value
- 71. 40%- 75. 27%e1
- Comparator
- those of sulfure1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“The nitrogen translocation rates(71. 40%- 75. 27%) were much higher than those of sulfur(8. 52%- 27. 73%)”
Claim · model-written summary
Sulfur translocation rate in winter wheat was 8.52–27.73%.
- Taxon
- winter wheatTriticum aestivume0
- Outcome
- translocation ratese1
- Value
- 8. 52%- 27. 73%e1
- Qualifier
- sulfure1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“The nitrogen translocation rates(71. 40%- 75. 27%) were much higher than those of sulfur(8. 52%- 27. 73%)”
Claim · model-written summary
Leaf nitrogen/sulfur ratio in winter wheat was highest at booting and then declined after anthesis.
- Taxon
- winter wheatTriticum aestivume0
- Organ / stage
- leafe1
- Outcome
- leaf nitrogen / sulfur ratiose1
- Direction
- highest at bootinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“The leaf nitrogen / sulfur ratios were highest at booting and then declined after anthesis”
Claim · model-written summary
Nitrogen/sulfur ratio decreased as the sulfur application rate increased.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- sulfur application ratee1
- Outcome
- nitrogen / sulfur ratioe1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“Throughout the growing season,we observed that the nitrogen / sulfur ratio decreased as the sulfur application rate increased”
Claim · model-written summary
Nitrogen/sulfur ratio at the booting stage was closely related to grain yield.
- Taxon
- winter wheatTriticum aestivume0
- Organ / stage
- booting stagee1
- Outcome
- grain yielde1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“Correlation analysis showed that the nitrogen /sulfur ratio at the booting stage was closely related with grain yield”
Claim · model-written summary
Grain yield increased as the sulfur application rate increased.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- sulfur application ratee1
- Outcome
- grain yielde1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“The study also indicated that grain yield increased as the sulfur application rate increased”
Claim · model-written summary
Grain yield was 30.14% higher with 150 kg/ha sulfur than in the unfertilized treatment.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- sulfur 150 kg / ha treatmente1
- Outcome
- Grain yielde1
- Direction
- highere1
- Value
- 30. 14%e1
- Comparator
- unfertilized treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“Grain yield was 30. 14% higher in the sulfur 150 kg / ha treatment than in the unfertilized treatment”
Claim · model-written summary
Sulfur fertilizer at 37.5 to 150 kg/ha increased nitrogen and sulfur uptake and translocation in winter wheat.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- application of sulfur fertilizer at rates between 37. 5 and sulfur150 kg / hae1
- Outcome
- uptake and translocation of nitrogen and sulfure1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“the application of sulfur fertilizer at rates between 37. 5 and sulfur150 kg / ha increased the uptake and translocation of nitrogen and sulfur”
Claim · model-written summary
Sulfur fertilizer input increased the number of spikes per unit area and grains per spike in winter wheat.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- sulfur fertilizer inpute1
- Outcome
- number of spikes per unit area and grains per spikee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“The sulfur fertilizer input also increased the number of spikes per unit area and grains per spike,therefore increasing winter wheat yield significantly”
Claim · model-written summary
Sulfur fertilizer input significantly increased winter wheat yield.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- sulfur fertilizer inpute1
- Outcome
- winter wheat yielde1
- Direction
- increasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur concentrations in winter wheat plants gradually increased as the sulfur application rate increased”
e1“The sulfur fertilizer input also increased the number of spikes per unit area and grains per spike,therefore increasing winter wheat yield significantly”
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