Abstract
Slow‐release N fertilizer is considered an effective method of improving the N use efficiency (NUE). To investigate yield and N uptake of bowl‐seedling machine‐transplanted rice ( Oryza sativa L.) with slow‐release N fertilizer, three fertilizers treatments including slow‐release fertilizer blend (SFB), polymer‐coated urea (PCU), and sulfur‐coated urea (SCU), and two fertilizer methods including single basal application (B), and combined with tillering urea (BT) were performed from 2013 to 2014 in Jiangsu Yellow Sea Farm of China. Conventional split fertilization (CK) and zero N treatment (N0) are controls. Yield and NUE improvement was found in PCU under both fertilization methods in both years when compared with the CK. The SCU only showed a slight yield increase in 2014, while SFB increased the yields and NUEs under both fertilization methods in both years. The BT‐SFB got the highest yields as 13.6 and 13.3 Mg ha −1 , as well as increased 7.9 and 10.8% compared with CK in both years, respectively. The recovery efficiency of N was also the highest for BT‐SFB with 52.7 and 38.5% for 2013 and 2014, respectively. The results indicated that SFB can meet the rice N demand and improve the yield and NUE, and the combined application of tillering urea and SFB was better than that of single basal application with SFB.
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Claims 8
Claim · model-written summary
PCU improved yield relative to conventional fertilization in both years and methods.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“Yield and NUE improvement was found in PCU under both fertilization methods in both years when compared with the CK.”
Claim · model-written summary
PCU improved nitrogen use efficiency relative to conventional fertilization.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“Yield and NUE improvement was found in PCU under both fertilization methods in both years when compared with the CK.”
Claim · model-written summary
SCU slightly increased yield in 2014.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“The SCU only showed a slight yield increase in 2014”
Claim · model-written summary
SFB increased yield under both methods in both years.
- Taxon
- rice
Oryza sativae0 - Treatment
- SFBe1
- Outcome
- yieldse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“SFB increased the yields and NUEs under both fertilization methods in both years.”
Claim · model-written summary
SFB increased nitrogen use efficiency under both methods in both years.
- Taxon
- riceOryza sativae0
- Treatment
- SFBe1
- Outcome
- NUEse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“SFB increased the yields and NUEs under both fertilization methods in both years.”
Claim · model-written summary
BT-SFB yielded 13.6 Mg ha −1 in 2013, 7.9% above CK.
- Taxon
- riceOryza sativae0
- Treatment
- BT‐SFBe1
- Outcome
- yieldse1
- Direction
- higheste1
- Value
- 13.6 and 13.3 Mg ha −1e1
- Qualifier
- 7.9 and 10.8%e1
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“The BT‐SFB got the highest yields as 13.6 and 13.3 Mg ha −1 , as well as increased 7.9 and 10.8% compared with CK in both years, respectively.”
Claim · model-written summary
BT-SFB had the highest nitrogen recovery efficiency, 52.7% in 2013 and 38.5% in 2014.
- Taxon
- riceOryza sativae0
- Treatment
- BT‐SFBe1
- Outcome
- recovery efficiency of Ne1
- Direction
- higheste1
- Value
- 52.7 and 38.5%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“The recovery efficiency of N was also the highest for BT‐SFB with 52.7 and 38.5% for 2013 and 2014, respectively.”
Claim · model-written summary
Combined tillering urea and SFB application was better than a single basal SFB application.
- Taxon
- riceOryza sativae0
- Outcome
- combined application of tillering urea and SFBe1
- Comparator
- single basal application with SFBe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice ( Oryza sativa L.)”
e1“the combined application of tillering urea and SFB was better than that of single basal application with SFB.”
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