Abstract
Trial was carried out at Federal University of Agriculture, Abeokuta, Nigeria between 2010 and 2012 to determine response of lowland rice-ratooned rice-fluted pumpkin sequence to fertilizer. Experiment was laid out in Randomized Complete Block Design arranged in split-split plot in three replicates. Three rice genotypes constituted the main treatments sown in May and harvested in August. Split fertilizers application constituted sub-plot treatments were 90:45:45 (single dose), 45:22.5:22.5 & 45:22.5:22.5 (1:1), 30:15:15 & 60:30:30 (1:2) and 60:30:30 & 30:15:15 (2:1) NPK ha-1 at tillering and heading. N-fertilizer rates were sub-sub plot treatment and applied to ratooned ‘NERICA L-42’ had the tallest plants compare to others. ‘Ofada’ had the lowest number of days to 50 % flowering for main and ratooned rice, while ‘NERICA L-42’ had the highest number of days to 50 % heading. ‘NERICA L-41’ variety had the highest grain yield in main and ratooned rice. Based on this study, ‘NERICA L-41’ plus its ratooned rice obtained from single dose NPK and zero N-fertilizer plots produced grain yield of 4.69 t ha-1.
Highlights
Rice is a staple food consumed by more than 3.5 billion people of the world based on the fact that it contains more energy than wheat (Muthayya et al, 2014)
The straw serves as fodder for livestock, while rice bran is a good component in the preparation of poultry feed (FAO, 2003)
Rice represents a symbol of cultural identity and global unity, a main source of employment and livelihoods and an increasingly important cereal crop with world annual production estimated at 738.2 million tonnes in 2015 during which Africa recorded an average of 28.5 million tonnes (FAO, 2003; FAO, 2016)
Summary
Rice is a staple food consumed by more than 3.5 billion people of the world based on the fact that it contains more energy (kcal/kg) than wheat (Muthayya et al, 2014). Rice represents a symbol of cultural identity and global unity, a main source of employment and livelihoods and an increasingly important cereal crop with world annual production estimated at 738.2 million tonnes in 2015 during which Africa recorded an average of 28.5 million tonnes (FAO, 2003; FAO, 2016). Rice production in Nigeria in 2006 was estimated at 2.10 million tonnes while consumption was 3.71 million mega grams. Nigeria imports one million tonnes of rice, valued at $700 million or about N106 billion, from the Peoples Republic of Thailand every year (Sams, 2010). Nigeria is the second largest importer of rice (N356 billion per year i.e. approximately N1 billion per day) after Philippines in the World (ATA, 2011)
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