What question did this study set out to answer?

To determine the impact of different nitrogen levels on the growth and yield of various rice varieties.

April 27, 2026Open Access

2025 Vol-5 Issue-3 | GROWTH AND YIELD OF RICE VARIETIES (Oryza sativa L) AS INFLUENCED BY NITROGEN LEVELS IN THE NORTHERN ECOLOGICAL ZONE, FCT-ABUJA, NIGERIA

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Randomized trial examines how nitrogen influences rice growth and yield, suggesting optimal levels for planting.

To determine the impact of different nitrogen levels on the growth and yield of various rice varieties.
Conducted two field trials in 2021 and 2022 at the University of Abuja's Teaching and Research Farm.
Applied five nitrogen levels (0, 50, 100, 150, and 200 kg/ha) and evaluated four rice varieties in a randomized complete block design with three replications.
Analyzed collected data using ANOVA in R-statistics, and separated means with Least Significant Difference (LSD) where significant.
Faro 67 achieved the highest grain yield at nitrogen levels between 100 kg/ha and 200 kg/ha.
Faro 44 showed the maximum tillers per stand at 200 kg/ha but produced lower grain yields.
Gawal R1 yielded the highest at 200 kg/ha with 3.58 t/ha in 2021 and 5.3 t/ha in 2022.

Sani et al. (2025) studied this question.

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