Abstract
Nitrogen (N) fertilizer is an important plant nutrient for plant growth and yield. This study was conducted with four levels of N i.e., 0, 85, 170 and 250 kg ha -1 using two rice cultivars i.e., 'MR219' and 'MR220'. The experiment was carried out in a factorial design with four replications and grown under flooded condition. The study focused on analysing the effect of N fertilizer level and cultivar to growth, biomass and grain yield. Statistical results showed that N significantly affected the plant height, SPAD reading, biomass and yield but did not affect the varieties. The interaction effect between the N level and cultivars also does not show significant difference. With the increment in N application, all parameters were also increased significantly. Maximum plant height (70.46 cm), SPAD reading (39.13), biomass (927.29 g m -2 ) and yield (830.99 g m -2 ) were obtained from 250 kg ha -1 nitrogen application. Correlation and regression analysis between plant heights, SPAD reading, biomass and grain yield exhibited a strong and positive relationship. The result also indicate that plant height is a better indicator to estimate biomass (R=0.794, R 2 =0.630) and grain yield (R=0.634, R 2 =0.397) compared to SPAD reading.
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Claims 9
Claim · model-written summary
Nitrogen significantly increased plant height, reaching 70.46 cm at 250 kg ha -1.
- Taxon
- paddyt0
- Treatment
- 250 kg ha -1 nitrogen applicatione0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 70.46 cme0
Not reportedComparator
Verbatim
t0“paddy”
e0“With the increment in N application, all parameters were also increased significantly. Maximum plant height (70.46 cm), SPAD reading (39.13), biomass (927.29 g m -2 ) and yield (830.99 g m -2 ) were obtained from 250 kg ha -1 nitrogen application”
Claim · model-written summary
Nitrogen significantly increased SPAD reading, reaching 39.13 at 250 kg ha -1.
- Taxon
- paddyt0
- Treatment
- 250 kg ha -1 nitrogen applicatione0
- Outcome
- SPAD readinge0
- Direction
- increasede0
- Value
- 39.13e0
Not reportedComparator
Verbatim
t0“paddy”
e0“With the increment in N application, all parameters were also increased significantly. Maximum plant height (70.46 cm), SPAD reading (39.13), biomass (927.29 g m -2 ) and yield (830.99 g m -2 ) were obtained from 250 kg ha -1 nitrogen application”
Claim · model-written summary
Nitrogen significantly increased biomass, reaching 927.29 g m -2 at 250 kg ha -1.
- Taxon
- paddyt0
- Treatment
- 250 kg ha -1 nitrogen applicatione0
- Outcome
- biomasse0
- Direction
- increasede0
- Value
- 927.29 g m -2e0
Not reportedComparator
Verbatim
t0“paddy”
e0“With the increment in N application, all parameters were also increased significantly. Maximum plant height (70.46 cm), SPAD reading (39.13), biomass (927.29 g m -2 ) and yield (830.99 g m -2 ) were obtained from 250 kg ha -1 nitrogen application”
Claim · model-written summary
Nitrogen significantly increased grain yield, reaching 830.99 g m -2 at 250 kg ha -1.
- Taxon
- paddyt0
- Treatment
- 250 kg ha -1 nitrogen applicatione0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 830.99 g m -2e0
Not reportedComparator
Verbatim
t0“paddy”
e0“With the increment in N application, all parameters were also increased significantly. Maximum plant height (70.46 cm), SPAD reading (39.13), biomass (927.29 g m -2 ) and yield (830.99 g m -2 ) were obtained from 250 kg ha -1 nitrogen application”
Claim · model-written summary
Cultivar had no significant effect on the measured traits.
- Taxon
- paddyt0
- Treatment
- varietiese0
- Outcome
- plant height, SPAD reading, biomass and yielde0
- Direction
- did not affecte0
Not reportedComparator
Verbatim
t0“paddy”
e0“N significantly affected the plant height, SPAD reading, biomass and yield but did not affect the varieties”
Claim · model-written summary
Nitrogen level and cultivar showed no significant interaction effect.
Verbatim
t0“paddy”
e0“The interaction effect between the N level and cultivars also does not show significant difference”
Claim · model-written summary
Plant height, SPAD reading, biomass and grain yield had strong positive relationships.
Verbatim
t0“paddy”
e0“Correlation and regression analysis between plant heights, SPAD reading, biomass and grain yield exhibited a strong and positive relationship”
Claim · model-written summary
Plant height better predicted biomass than SPAD reading, with R=0.794 and R²=0.630.
Verbatim
t0“paddy”
e0“plant height is a better indicator to estimate biomass (R=0.794, R 2 =0.630) and grain yield (R=0.634, R 2 =0.397) compared to SPAD reading”
Claim · model-written summary
Plant height better predicted grain yield than SPAD reading, with R=0.634 and R²=0.397.
Verbatim
t0“paddy”
e0“plant height is a better indicator to estimate biomass (R=0.794, R 2 =0.630) and grain yield (R=0.634, R 2 =0.397) compared to SPAD reading”
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