Abstract
A plot experiment with different N rates(135 kg/hm2 and 105 kg/ hm2) was designed to study the effects of panicle N fertilizer ratio on absorbability of rice root in cold area.The results showed that the root bleeding and soluble sugar content of root in the 15% panicle N under high N level(135 kg/ hm2) was lower and in the treatment of 35% under middle N level(105 kg/ hm2) was higher at each period.Under the same N level,compared with 15% panicle fertilizer,the root bleeding of 35% panicle fertilizer were significantly increased at panicle initiation.At the same time,the soluble sugar content of rice root at panicle initiation stage and 20 days after heading were improved by 14.0% and 35.1%(p0.05) respectively.Compared with 15% panicle fertilizer treatment,35% panicle fertilizer treatment significantly increased total N uptake rate,N recovery efficiency,agronomic efficiency and partial factor productivity by 11.1%-15.6%,20%-43%,37.5%-38.5% and 12.6%-20.8%(p0.05),respectively,and increased average yield by 12.3%-12.7%(p0.05) as well.The results suggested that the increase of soluble sugar rate of rice root and root bleeding improved N uptake and N use efficiency by improving the concert of rice root C and N metabolism.
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Claims 11
Claim · model-written summary
Root bleeding was lower with 15% panicle N at high N and higher with 35% panicle N at medium N.
- Taxon
- rice
Oryza sativat0 - Outcome
- root bleedinge0
- Direction
- lowere0
- Qualifier
- 15% panicle N under high N level(135 kg/ hm2)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root bleeding and soluble sugar content of root in the 15% panicle N under high N level(135 kg/ hm2) was lower and in the treatment of 35% under middle N level(105 kg/ hm2) was higher at each period”
t0“Rice”
Claim · model-written summary
Root soluble sugar was lower with 15% panicle N at high N and higher with 35% panicle N at medium N.
- Taxon
- riceOryza sativat0
- Outcome
- soluble sugar content of roote0
- Direction
- lowere0
- Qualifier
- 15% panicle N under high N level(135 kg/ hm2)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root bleeding and soluble sugar content of root in the 15% panicle N under high N level(135 kg/ hm2) was lower and in the treatment of 35% under middle N level(105 kg/ hm2) was higher at each period”
t0“Rice”
Claim · model-written summary
At the same N level, 35% rather than 15% panicle fertilizer significantly increased root bleeding at panicle initiation.
- Taxon
- riceOryza sativat0
- Organ / stage
- panicle initiatione0
- Treatment
- 35% panicle fertilizere0
- Outcome
- root bleedinge0
- Direction
- increasede0
- Comparator
- 15% panicle fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with 15% panicle fertilizer,the root bleeding of 35% panicle fertilizer were significantly increased at panicle initiation”
t0“Rice”
Claim · model-written summary
35% panicle fertilizer improved root soluble sugar 14.0% at panicle initiation.
- Taxon
- riceOryza sativae0
- Organ / stage
- panicle initiation stagee0
- Treatment
- 35% panicle fertilizere1
- Outcome
- soluble sugar content of rice roote0
- Direction
- improvede0
- Value
- 14.0%e0
- Comparator
- 15% panicle fertilizere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soluble sugar content of rice root at panicle initiation stage and 20 days after heading were improved by 14.0% and 35.1%(p0.05) respectively”
e1“compared with 15% panicle fertilizer,the root bleeding of 35% panicle fertilizer were significantly increased at panicle initiation”
Claim · model-written summary
35% panicle fertilizer improved root soluble sugar 35.1% at 20 days after heading.
- Taxon
- riceOryza sativae0
- Organ / stage
- 20 days after headinge0
- Treatment
- 35% panicle fertilizere1
- Outcome
- soluble sugar content of rice roote0
- Direction
- improvede0
- Value
- 35.1%e0
- Comparator
- 15% panicle fertilizere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soluble sugar content of rice root at panicle initiation stage and 20 days after heading were improved by 14.0% and 35.1%(p0.05) respectively”
e1“compared with 15% panicle fertilizer,the root bleeding of 35% panicle fertilizer were significantly increased at panicle initiation”
Claim · model-written summary
35% panicle fertilizer increased total N uptake rate by 11.1%-15.6%.
- Taxon
- RiceOryza sativat0
- Treatment
- 35% panicle fertilizer treatmente0
- Outcome
- total N uptake ratee0
- Direction
- increasede0
- Value
- 11.1%-15.6%e0
- Comparator
- 15% panicle fertilizer treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“35% panicle fertilizer treatment significantly increased total N uptake rate,N recovery efficiency,agronomic efficiency and partial factor productivity by 11.1%-15.6%,20%-43%,37.5%-38.5% and 12.6%-20.8%(p0.05),respectively”
t0“Rice”
e1“Compared with 15% panicle fertilizer treatment,35% panicle fertilizer treatment significantly increased”
Claim · model-written summary
35% panicle fertilizer increased N recovery efficiency by 20%-43%.
- Taxon
- RiceOryza sativat0
- Treatment
- 35% panicle fertilizer treatmente0
- Outcome
- N recovery efficiencye0
- Direction
- increasede0
- Value
- 20%-43%e0
- Comparator
- 15% panicle fertilizer treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“35% panicle fertilizer treatment significantly increased total N uptake rate,N recovery efficiency,agronomic efficiency and partial factor productivity by 11.1%-15.6%,20%-43%,37.5%-38.5% and 12.6%-20.8%(p0.05),respectively”
t0“Rice”
e1“Compared with 15% panicle fertilizer treatment,35% panicle fertilizer treatment significantly increased”
Claim · model-written summary
35% panicle fertilizer increased agronomic efficiency by 37.5%-38.5%.
- Taxon
- RiceOryza sativat0
- Treatment
- 35% panicle fertilizer treatmente0
- Outcome
- agronomic efficiencye0
- Direction
- increasede0
- Value
- 37.5%-38.5%e0
- Comparator
- 15% panicle fertilizer treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“35% panicle fertilizer treatment significantly increased total N uptake rate,N recovery efficiency,agronomic efficiency and partial factor productivity by 11.1%-15.6%,20%-43%,37.5%-38.5% and 12.6%-20.8%(p0.05),respectively”
t0“Rice”
e1“Compared with 15% panicle fertilizer treatment,35% panicle fertilizer treatment significantly increased”
Claim · model-written summary
35% panicle fertilizer increased partial factor productivity by 12.6%-20.8%.
- Taxon
- RiceOryza sativat0
- Treatment
- 35% panicle fertilizer treatmente0
- Outcome
- partial factor productivitye0
- Direction
- increasede0
- Value
- 12.6%-20.8%e0
- Comparator
- 15% panicle fertilizer treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“35% panicle fertilizer treatment significantly increased total N uptake rate,N recovery efficiency,agronomic efficiency and partial factor productivity by 11.1%-15.6%,20%-43%,37.5%-38.5% and 12.6%-20.8%(p0.05),respectively”
t0“Rice”
e1“Compared with 15% panicle fertilizer treatment,35% panicle fertilizer treatment significantly increased”
Claim · model-written summary
35% panicle fertilizer increased average yield by 12.3%-12.7%.
- Taxon
- RiceOryza sativat0
- Treatment
- 35% panicle fertilizer treatmente1
- Outcome
- average yielde0
- Direction
- increasede0
- Value
- 12.3%-12.7%e0
- Comparator
- 15% panicle fertilizer treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased average yield by 12.3%-12.7%(p0.05) as well”
t0“Rice”
e1“Compared with 15% panicle fertilizer treatment,35% panicle fertilizer treatment significantly increased”
Claim · model-written summary
The authors suggest that greater root soluble sugar and bleeding improved N uptake and use efficiency through root C and N metabolism.
- Taxon
- riceOryza sativae0
- Organ / stage
- rice roote0
- Outcome
- N uptake and N use efficiencye0
- Qualifier
- improving the concert of rice root C and N metabolisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase of soluble sugar rate of rice root and root bleeding improved N uptake and N use efficiency by improving the concert of rice root C and N metabolism”
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