Oni O. E*, Adigbo S.O; Fabunmi T.O , and Adejuyigbe C.O

• access_time29 December, 2023

  subjectCategory: Agricultural Sciences

• The study was conducted to determine the effects of upland rice and lowland preceding varieties, and N fertilization on growth and productivity upland rice grown the same year in two locations in the inland valley of Nigeria. The experiment was split plot design with two preceding lowland rice varieties (Jasmine and Funaabor-2) as main plots and five levels of N (0, 30, 60, 90 and 120 kg N ha-1) for the succeeding upland rice as split plot treatments with 3 replications. Results showed that upland rice grown after FUNAABOR-2 variety gave significant (p < 0.05) number of leaves, chlorophyll content, number of tillers, dry matter, panicle per m2, panicle weight and grain yield than Jasmine variety was the preceding crop. Rice grown after Funaabor-2 exhibited 54% grain yield increments compared to growing Jasmine in Igbogila. The effects of preceding lowland rice varieties on the yield components and grain yield of upland rice was pronounced more in Alabata (671 kg ha-1) than Igbogila (1077 kg ha-1). Similarly, linear responses to N application from 0-120 kg ha-1 were observed on the growth and yield components of rice in both locations. Thus, Cultivation of Funaabor-2 and increasing the rate of N application from 90 to 120 kg ha-1 is recommended to boost rice growth and yield, increase profitability and to enhance long-term sustainability of the cropping system in inland valley.
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