Abstract: A two-year field experiment was conducted to evaluate the influence of nitrogen (0, 30, 60, and 120 kg N ha-1) and phosphorus (0, 30, and 60 kg P2O5 ha-1) application on grain yield and yield components of five New Rice for Africa (NERICA) cultivars, their parents, and a check on a degraded soil in the moist savanna of Nigeria. Nerica 14 recorded the highest grain yield of 1.3 mg ha-1compared to the other NERICA cultivars. It also produced significantly (P < 0.05) longer panicles (19.24 cm), higher sink capacity as determined by thousand-kernel weight (30.3 g), and a higher potential for partitioning photosynthates (45.15%) into grains than the other cultivars. N × P interaction effect on grain yield was significant (P < 0.05) with moderate P (60 kg P2O5 ha-1) and moderate N (60 kg N ha-1) resulting in optimum grain yield (1.7 mg ha-1). Thus, moderate N and P were recommended for the production of NERICA varieties in low-input smallholder upland rice production systems of the moist savanna of Nigeria.
Key words: Moist savanna, NERICA© rice, nitrogen, Oryza sativa, phosphorus, upland.
Okonji, C , Okeleye, K , Oikeh, S , Aderibigbe, S , Nwilene, F , Ajayi, O & Oyekanmi, A (2021). Rice Yield and Yield Components as Influenced by Phosphorus and Nitrogen Application Rates in the Moist Savanna of West Africa. Afribary. Retrieved from https://afribary.com/works/rice-yield-and-yield-components-as-influenced-by-phosphorus-and-nitrogen-application-rates-in-the-moist-savanna-of-west-africa
Okonji, Christopher et. al. "Rice Yield and Yield Components as Influenced by Phosphorus and Nitrogen Application Rates in the Moist Savanna of West Africa" Afribary. Afribary, 23 Feb. 2021, https://afribary.com/works/rice-yield-and-yield-components-as-influenced-by-phosphorus-and-nitrogen-application-rates-in-the-moist-savanna-of-west-africa. Accessed 23 Dec. 2024.
Okonji, Christopher, Kehinde Okeleye , Sylvester Oikeh , Sunday Aderibigbe , Francis Nwilene , Olupomi Ajayi and Akeem Oyekanmi . "Rice Yield and Yield Components as Influenced by Phosphorus and Nitrogen Application Rates in the Moist Savanna of West Africa". Afribary, Afribary, 23 Feb. 2021. Web. 23 Dec. 2024. < https://afribary.com/works/rice-yield-and-yield-components-as-influenced-by-phosphorus-and-nitrogen-application-rates-in-the-moist-savanna-of-west-africa >.
Okonji, Christopher , Okeleye, Kehinde , Oikeh, Sylvester , Aderibigbe, Sunday , Nwilene, Francis , Ajayi, Olupomi and Oyekanmi, Akeem . "Rice Yield and Yield Components as Influenced by Phosphorus and Nitrogen Application Rates in the Moist Savanna of West Africa" Afribary (2021). Accessed December 23, 2024. https://afribary.com/works/rice-yield-and-yield-components-as-influenced-by-phosphorus-and-nitrogen-application-rates-in-the-moist-savanna-of-west-africa