Abstract
[Objective]The effect of nitrogen fertilization on double-cropping rice planted in middle areas of Guangxi,was investigated to rationalize the application of nitrogen fertilizer in rice production.[Method]Field experiments were conducted to investigate the effects of different dosages of controlled-N releasing fertilizer on growth characteristics and yield of rice in Xingbin District of Guangxi during 2008-2009.[Result]The nitrogen fertilizer showed stimulatory effect on growth of early rice,and significantly improved the yield.Compared to the treatment of nitrogen less fertilizer(N0),the plant height and effective panicles of early rice in N treatment during two years increased by 16.07 and 28.76%,respectively,total grain number per panicle and seed setting rate increased by 12.54 and 1.34%,respectively,and the average yield of rice increased by 41.26%.However,the effective panicles,toal grain number per panicle,seed setting rate and yield of rice were decreased with the increase of fertilizer dosage above 330 kg/ha N.[Conclusion]Applying 165-330 kg/ha nitrogen fertilizer in rice production was found to be suitable for ensuring high yield of rice and high efficiency of N fertilizer application in middle areas of Guangxi.
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Claims 10
Claim · model-written summary
Nitrogen fertilization increased plant height of early rice by 16.07% relative to the no-nitrogen treatment.
- Taxon
- rice
Oryza sativat0 - Treatment
- N treatmente1
- Outcome
- plant heighte1
- Direction
- increasede1
- Value
- 16.07e1
- Comparator
- nitrogen less fertilizer(N0)e1
- Setting
- Xingbin District of Guangxie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e0“Field experiments were conducted to investigate the effects of different dosages of controlled-N releasing fertilizer on growth characteristics and yield of rice in Xingbin District of Guangxi during 2008-2009”
e1“Compared to the treatment of nitrogen less fertilizer(N0), the plant height and effective panicles of early rice in N treatment during two years increased by 16.07 and 28.76%”
Claim · model-written summary
Nitrogen fertilization increased effective panicles of early rice by 28.76% relative to the no-nitrogen treatment.
- Taxon
- riceOryza sativat0
- Treatment
- N treatmente1
- Outcome
- effective paniclese1
- Direction
- increasede1
- Value
- 28.76%e1
- Comparator
- nitrogen less fertilizer(N0)e1
- Setting
- Xingbin District of Guangxie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e0“Field experiments were conducted to investigate the effects of different dosages of controlled-N releasing fertilizer on growth characteristics and yield of rice in Xingbin District of Guangxi during 2008-2009”
e1“Compared to the treatment of nitrogen less fertilizer(N0), the plant height and effective panicles of early rice in N treatment during two years increased by 16.07 and 28.76%”
Claim · model-written summary
Nitrogen fertilization increased total grain number per panicle of rice by 12.54% relative to the no-nitrogen treatment.
- Taxon
- riceOryza sativat0
- Treatment
- N treatmente1
- Outcome
- total grain number per paniclee2
- Direction
- increasede2
- Value
- 12.54e2
- Comparator
- nitrogen less fertilizer(N0)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e1“Compared to the treatment of nitrogen less fertilizer(N0), the plant height and effective panicles of early rice in N treatment during two years increased by 16.07 and 28.76%”
e2“total grain number per panicle and seed setting rate increased by 12.54 and 1.34%”
Claim · model-written summary
Nitrogen fertilization increased seed setting rate of rice by 1.34% relative to the no-nitrogen treatment.
- Taxon
- riceOryza sativat0
- Treatment
- N treatmente1
- Outcome
- seed setting ratee2
- Direction
- increasede2
- Value
- 1.34%e2
- Comparator
- nitrogen less fertilizer(N0)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e1“Compared to the treatment of nitrogen less fertilizer(N0), the plant height and effective panicles of early rice in N treatment during two years increased by 16.07 and 28.76%”
e2“total grain number per panicle and seed setting rate increased by 12.54 and 1.34%”
Claim · model-written summary
Nitrogen fertilization increased average rice yield by 41.26% relative to the no-nitrogen treatment.
- Taxon
- riceOryza sativat0
- Treatment
- N treatmente1
- Outcome
- average yield of ricee3
- Direction
- increasede3
- Value
- 41.26%e3
- Comparator
- nitrogen less fertilizer(N0)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e1“Compared to the treatment of nitrogen less fertilizer(N0), the plant height and effective panicles of early rice in N treatment during two years increased by 16.07 and 28.76%”
e3“the average yield of rice increased by 41.26%”
Claim · model-written summary
Effective panicles of rice decreased when fertilizer dosage was raised above 330 kg/ha N.
- Taxon
- riceOryza sativat0
- Treatment
- increase of fertilizer dosage above 330 kg/ha Ne4
- Outcome
- effective paniclese4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e4“the effective panicles,toal grain number per panicle,seed setting rate and yield of rice were decreased with the increase of fertilizer dosage above 330 kg/ha N”
Claim · model-written summary
Grain number per panicle of rice decreased when fertilizer dosage was raised above 330 kg/ha N.
- Taxon
- riceOryza sativat0
- Treatment
- increase of fertilizer dosage above 330 kg/ha Ne4
- Outcome
- grain number per paniclee4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e4“the effective panicles,toal grain number per panicle,seed setting rate and yield of rice were decreased with the increase of fertilizer dosage above 330 kg/ha N”
Claim · model-written summary
Seed setting rate of rice decreased when fertilizer dosage was raised above 330 kg/ha N.
- Taxon
- riceOryza sativat0
- Treatment
- increase of fertilizer dosage above 330 kg/ha Ne4
- Outcome
- seed setting ratee4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e4“the effective panicles,toal grain number per panicle,seed setting rate and yield of rice were decreased with the increase of fertilizer dosage above 330 kg/ha N”
Claim · model-written summary
Yield of rice decreased when fertilizer dosage was raised above 330 kg/ha N.
- Taxon
- riceOryza sativat0
- Treatment
- increase of fertilizer dosage above 330 kg/ha Ne4
- Outcome
- yield of ricee4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of different dosages of controlled-N releasing fertilizer on agronomic traits and yield in rice”
e4“the effective panicles,toal grain number per panicle,seed setting rate and yield of rice were decreased with the increase of fertilizer dosage above 330 kg/ha N”
Claim · model-written summary
Applying 165-330 kg/ha nitrogen fertilizer is suitable for high rice yield and high N fertilizer efficiency in middle Guangxi.
- Taxon
- riceOryza sativae5
- Treatment
- Applying 165-330 kg/ha nitrogen fertilizere5
- Outcome
- high yield of rice and high efficiency of N fertilizer applicatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Applying 165-330 kg/ha nitrogen fertilizer in rice production was found to be suitable for ensuring high yield of rice and high efficiency of N fertilizer application”
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