Browsing by Author "Kebede, Firew"

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    Effect of Varying Concentrations of Nitrogen and Phosphorus Supply on the Growth of Enset (Ensete Ventricosum (Welw.) Cheesman) Suckers
    (Addis Ababa University, 1999-06) Kebede, Firew; Fetene, Masresha(PhD)
    The effect of a range of factorially combined concentrations of nitrogen and phosphorus on the growth of enset suckers (Ellsete velltricoSlI1II (Welw.) Cheesman) was studied in a greenhouse using Randomized Complete Block Design with seven replications. The experiment was conducted on soil samples collected from Sidamo, Agereselam as growing medium. To these soils, four concentrations of nitrogen (0, 10, 50 and 250 mgl-l , designated as N" N2 , N3 and N4 , respectively); and four concentrations of phosphorus (0, 9, 27 and 81 mgl-l , designated as PI' P2 , P3 and P4 , respectively) were factorially combined and added to investigate sixteen treatments. The appropriate nutrient solutions were applied to the plants at a rate of 200 ml twice in a week Enset suckers responded to an increase in concentrations of nitrogen and phosphorus in solution through increases in pseudostem girth, leaf area, total biomass and tissue nitrogen and phosphorus contents. Increasing concentrations of nitrogen and phosphorus in solution resulted in significant increase (P < 0.001) in pseudostem girth and total dry weight. The interaction between the two nutrients were also highly significant (P