Articles
Effect of nitrogen fertilizer to growth, biomass and grain yield of paddy
Article number
1152_22
Pages
159 – 164
Language
English
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, R2=0.630) and grain yield (R=0.634, R2=0.397) compared to SPAD reading.
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, R2=0.630) and grain yield (R=0.634, R2=0.397) compared to SPAD reading.
Authors
S. Khairunniza-Bejo, Z. Zulkifli, F.M. Muharam
Keywords
nitrogen, growth, biomass, grain yield, paddy
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