Abstract
Pot experiments were carried out to compare different effects of sulfur-coated urea(SCU) with urea on growth and nitrogen use efficiency(NUE) of rice.Results obtained were as follows:(1) SCU had significantly positive effects on growth of rice at tillering stage,but with smaller increment compared to urea.At harvest stage,on condition of applying the same rates of fertilizer and N dosage,the grain yield of rice applied with SCU were 35.7% and 19.3% higher than those with urea,respectively.At the same nitrogen usage,treatment with SCU has higher thousand-grain weight while less effective spike number than those of urea;(2) NUE and partial factor productivity for applied N(PFP) of rice fed with SCU were higher than those with urea.At the same fertilizer dosage,NUE of SCU treatments were 47.35% to 57.48%,which were 12.5% higher than urea treatments on the average.PFP on SCU treated rice were increased by 10% than urea.At the same N dosage,NUE of SCU application treatments were 17.12% higher than those of urea,reaching 51.11%.
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Claims 10
Claim · model-written summary
Sulfur-coated urea significantly improved rice growth at tillering, less than urea.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- tillering stagee0
- Treatment
- SCUe0
- Outcome
- growth of ricee0
- Direction
- positive effectse0
- Comparator
- ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SCU had significantly positive effects on growth of rice at tillering stage,but with smaller increment compared to urea”
Claim · model-written summary
At equal fertilizer rates, SCU increased rice grain yield by 35.7% over urea.
- Taxon
- riceOryza sativae0
- Treatment
- SCUe0
- Outcome
- grain yield of ricee0
- Direction
- highere0
- Value
- 35.7%e0
- Qualifier
- same rates of fertilizere0
- Comparator
- ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At harvest stage,on condition of applying the same rates of fertilizer and N dosage,the grain yield of rice applied with SCU were 35.7% and 19.3% higher than those with urea,respectively”
Claim · model-written summary
At equal nitrogen dosage, SCU increased rice grain yield by 19.3% over urea.
- Taxon
- riceOryza sativae0
- Treatment
- SCUe0
- Outcome
- grain yield of ricee0
- Direction
- highere0
- Value
- 19.3%e0
- Qualifier
- same rates of fertilizer and N dosagee0
- Comparator
- ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At harvest stage,on condition of applying the same rates of fertilizer and N dosage,the grain yield of rice applied with SCU were 35.7% and 19.3% higher than those with urea,respectively”
Claim · model-written summary
At equal nitrogen use, SCU raised thousand-grain weight.
- Taxon
- riceOryza sativae1
- Treatment
- SCUe0
- Outcome
- thousand-grain weighte0
- Direction
- highere0
- Comparator
- ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the same nitrogen usage,treatment with SCU has higher thousand-grain weight while less effective spike number than those of urea”
e1“growth of rice at tillering stage”
Claim · model-written summary
At equal nitrogen use, SCU reduced effective spike number.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the same nitrogen usage,treatment with SCU has higher thousand-grain weight while less effective spike number than those of urea”
e1“growth of rice at tillering stage”
Claim · model-written summary
At equal fertilizer dosage, SCU nitrogen use efficiency was 47.35% to 57.48%.
- Taxon
- riceOryza sativae1
- Treatment
- SCUe0
- Outcome
- NUEe0
- Value
- 47.35% to 57.48%e0
- Qualifier
- same fertilizer dosagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the same fertilizer dosage,NUE of SCU treatments were 47.35% to 57.48%,which were 12.5% higher than urea treatments on the average”
e1“nitrogen use efficiency(NUE) of rice”
Claim · model-written summary
At equal fertilizer dosage, SCU nitrogen use efficiency averaged 12.5% higher than urea.
- Taxon
- riceOryza sativae1
- Treatment
- SCUe0
- Outcome
- NUEe0
- Direction
- highere0
- Value
- 12.5%e0
- Comparator
- urea treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the same fertilizer dosage,NUE of SCU treatments were 47.35% to 57.48%,which were 12.5% higher than urea treatments on the average”
e1“nitrogen use efficiency(NUE) of rice”
Claim · model-written summary
SCU increased partial factor productivity by 10% compared with urea.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PFP on SCU treated rice were increased by 10% than urea”
Claim · model-written summary
At equal nitrogen dosage, SCU increased nitrogen use efficiency by 17.12% relative to urea.
- Taxon
- riceOryza sativae1
- Treatment
- SCUe0
- Outcome
- NUEe0
- Direction
- highere0
- Value
- 17.12%e0
- Qualifier
- same N dosagee0
- Comparator
- ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the same N dosage,NUE of SCU application treatments were 17.12% higher than those of urea,reaching 51.11%”
e1“nitrogen use efficiency(NUE) of rice”
Claim · model-written summary
At equal nitrogen dosage, SCU nitrogen use efficiency reached 51.11%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the same N dosage,NUE of SCU application treatments were 17.12% higher than those of urea,reaching 51.11%”
e1“nitrogen use efficiency(NUE) of rice”
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See all 2,045 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.