Abstract
Using hybrid rice Shanyou63, the agronomic and economic characters of different nitrogen (N) managements were evaluated. The results showed that the grain yield of the control (N omission plots) ranged from 6.8 to 7.4 t ha^(-1), indicating the high indigenous N supply of the soil. Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%, and agronomic N efficiency (the increase in grain yield per unit N applied) by 110.5-135.6%, 204.3-297.0% and 200.9-276.4%, respectively. The results suggested that RTNM and SSNM have great potential for improving N use efficiency without sacrificing the grain yield. In addition, RTNM and SSNM also decreased chalky grain percentage and chalkiness to improve grain appearance quality.
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Claims 9
Claim · model-written summary
Yield in nitrogen omission plots ranged from 6.8 to 7.4 t ha^(-1).
- Taxon
- rice
Oryza sativat0 - Material
- Shanyou63e1
- Treatment
- N omission plotse0
- Outcome
- grain yielde0
- Value
- 6.8 to 7.4 t ha^(-1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the grain yield of the control (N omission plots) ranged from 6.8 to 7.4 t ha^(-1)”
e1“Using hybrid rice Shanyou63, the agronomic and economic characters of different nitrogen (N) managements were evaluated. The results showed that the grain yield of the control (N omission plots) ranged from 6.8 to 7.4 t ha^(-1), indicating the high indigenous N supply of the soil. Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%”
t0“Rice Yield”
Claim · model-written summary
Modified farmer practice raised rice yield 9.2-10.3% against FFP.
- Taxon
- RiceOryza sativat0
- Treatment
- modified FFP (70% N of FFP)e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 9.2-10.3%e0
- Comparator
- farmer's fertilizer practice (FFP, 240 kg N ha^(-1))e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%”
t0“Rice Yield”
Claim · model-written summary
RTNM raised rice yield 3.3-7.0% against FFP.
- Taxon
- RiceOryza sativat0
- Treatment
- real-time N management (RTNM, applying N based on values of chlorophyll meter)e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 3.3-7.0%e0
- Comparator
- farmer's fertilizer practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%”
t0“Rice Yield”
Claim · model-written summary
SSNM raised rice yield 8.9-9.3% against FFP.
- Taxon
- RiceOryza sativat0
- Treatment
- site-specific N managemente0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 8.9-9.3%e0
- Comparator
- farmer's fertilizer practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%”
t0“Rice Yield”
Claim · model-written summary
Modified FFP raised agronomic N efficiency 110.5-135.6%.
- Taxon
- RiceOryza sativat0
- Treatment
- modified FFPe1
- Outcome
- agronomic N efficiencye0
- Direction
- increasee0
- Value
- 110.5-135.6%e0
- Comparator
- FFPe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agronomic N efficiency (the increase in grain yield per unit N applied) by 110.5-135.6%, 204.3-297.0% and 200.9-276.4%, respectively.”
e1“Using hybrid rice Shanyou63, the agronomic and economic characters of different nitrogen (N) managements were evaluated. The results showed that the grain yield of the control (N omission plots) ranged from 6.8 to 7.4 t ha^(-1), indicating the high indigenous N supply of the soil. Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%”
t0“Rice Yield”
Claim · model-written summary
RTNM raised agronomic N efficiency 204.3-297.0%.
- Taxon
- RiceOryza sativat0
- Treatment
- RTNMe1
- Outcome
- agronomic N efficiencye0
- Direction
- increasee0
- Value
- 204.3-297.0%e0
- Comparator
- FFPe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agronomic N efficiency (the increase in grain yield per unit N applied) by 110.5-135.6%, 204.3-297.0% and 200.9-276.4%, respectively.”
e1“Using hybrid rice Shanyou63, the agronomic and economic characters of different nitrogen (N) managements were evaluated. The results showed that the grain yield of the control (N omission plots) ranged from 6.8 to 7.4 t ha^(-1), indicating the high indigenous N supply of the soil. Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%”
t0“Rice Yield”
Claim · model-written summary
SSNM raised agronomic N efficiency 200.9-276.4%.
- Taxon
- RiceOryza sativat0
- Treatment
- SSNMe1
- Outcome
- agronomic N efficiencye0
- Direction
- increasee0
- Value
- 200.9-276.4%e0
- Comparator
- FFPe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agronomic N efficiency (the increase in grain yield per unit N applied) by 110.5-135.6%, 204.3-297.0% and 200.9-276.4%, respectively.”
e1“Using hybrid rice Shanyou63, the agronomic and economic characters of different nitrogen (N) managements were evaluated. The results showed that the grain yield of the control (N omission plots) ranged from 6.8 to 7.4 t ha^(-1), indicating the high indigenous N supply of the soil. Compared with farmer's fertilizer practice (FFP, 240 kg N ha^(-1)), the modified FFP (70% N of FFP), real-time N management (RTNM, applying N based on values of chlorophyll meter) and site-specific N management (SSNM, applying nitrogen based on the timing, amount of N and values of chlorophyll meter) increased the grain yield by 9.2-10.3%, 3.3-7.0% and 8.9-9.3%”
t0“Rice Yield”
Claim · model-written summary
RTNM decreased chalky grain percentage and chalkiness.
- Taxon
- RiceOryza sativat0
- Treatment
- RTNMe0
- Outcome
- chalky grain percentage and chalkinesse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RTNM and SSNM also decreased chalky grain percentage and chalkiness to improve grain appearance quality.”
t0“Rice Yield”
Claim · model-written summary
SSNM decreased chalky grain percentage and chalkiness.
- Taxon
- RiceOryza sativat0
- Treatment
- SSNMe0
- Outcome
- chalky grain percentage and chalkinesse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RTNM and SSNM also decreased chalky grain percentage and chalkiness to improve grain appearance quality.”
t0“Rice Yield”
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