ABSTRACT:

Buckets experiment was conducted on the growth, yield and irrigation water use efficiency of Amaranth {Amaranthus cruentus} in response to irrigation frequency and poultry manure at the research farm of the National Cereal Research Institute, Badeggi, Niger-State between 7th November 2023 and 7th January 2024. Poultry manure was applied at the rate of 2.5, 5.0, and 7.5 t/ha and Control. The irrigation frequency consists of three artificial irrigation regimes which involve watering once, twice and thrice per week. The experiment was a 4×3 factorial laid in a Randomized Complete Block Design (RCBD) with three replicates. Increased rate of Poultry manures significantly increased Plant height, Leaf area, dry matter yield and grain yield. Highest plant height {216.05 cm}, leaf area {1345.9 cm2}, dry weight Panicle {18.4 g} and grain yield {5.83 g} were obtained at 7.5 t/ha. On the average, twice irrigation indicated the highest vegetative parameters, components of yield and grain yield. Irrigation water use efficiency reduced with increased irrigation frequency