Abstract
Temporal variation of rice growth and nitrogen (N) uptake generally follow a sigmoid curve and may respond positively to the N-fertilizer application at critical growth stages. In this study, it was hypothesized that the amount of N-fertilizer applied at critical growth stages possibly follows a geometric pattern such as line, parabola, and sinusoidal to attain maximum yield and nitrogen use efficiency. To test and identify the best pattern, short-term modeling-field testing-long-term modeling strategy was followed. The patterns with the highest simulated yield and nitrogen use efficiency from short-term modeling were tested in the field. Finally, long-term evaluation of N-fertilization patterns was performed using 25 years of historical weather data, resulting in the line pattern with 14% more yield and 25% less NO3− leaching in comparison to the conventional N-Fertilization pattern. Therefore, line pattern may be adopted to enhance the yield and nitrogen use efficiency in rice.
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Claims 3
Claim · model-written summary
The line nitrogen pattern produced 14% more rice yield than conventional fertilization in long-term evaluation.
- Taxon
- Rice
Oryza sativat0 - Treatment
- line patterne0
- Outcome
- yielde0
- Direction
- moree0
- Value
- 14%e0
- Qualifier
- 25 years of historical weather datae0
- Comparator
- conventional N-Fertilization patterne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-term evaluation of N-fertilization patterns was performed using 25 years of historical weather data, resulting in the line pattern with 14% more yield and 25% less NO3− leaching in comparison to the conventional N-Fertilization pattern”
t0“Rice”
Claim · model-written summary
The line nitrogen pattern produced 25% less nitrate leaching than conventional fertilization.
- Taxon
- RiceOryza sativat0
- Treatment
- line patterne0
- Outcome
- NO3− leachinge0
- Direction
- lesse0
- Value
- 25%e0
- Comparator
- conventional N-Fertilization patterne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“line pattern with 14% more yield and 25% less NO3− leaching in comparison to the conventional N-Fertilization pattern”
t0“Rice”
Claim · model-written summary
The authors recommend the line pattern to enhance rice yield and nitrogen use efficiency.
- Taxon
- riceOryza sativae0
- Outcome
- line pattern may be adopted to enhance the yield and nitrogen use efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“line pattern may be adopted to enhance the yield and nitrogen use efficiency in rice”