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This experiment was executed in a split randomized complete block design with three replications. Two plant densities (D), (D 1 ; D2) equal to one plant and two plants per pot and seven fertilizers doses (F), (N 0 K 0 ; N 1 K 0 ; N 1 K 1 ; N 2 K 0 ; N2 K2; N 0 K 1 ; N 0 K 2 ) were investigated. N 0 , N1 1 and N 2 equal to 0, 0.46, and 0.92 g urea while, K 0 , K 1 and K 2 equal to 0, 0.42 and 0.84 g potassium sulfate,  respectively. The results showed that the treatments had no effect on the number of  branches per plant and vice versa the interaction. Lower plant density (D 1 ) and higher dose of both elements (N 2 K 2 ) significantly increased shoots dry weight, number of pods and pod yield per plant while, in second season the higher value of those yield parameters was obtained at lower dose of nitrogen (N 1 K 0 ), the interaction of those treatments increased significantly plant dry weight. The  interaction between lower plant density (D 1 ) and nitrogen irrespective of their quantity and potassium, (N 1 K 0 ; N 1 K 1 ; N 2 K 0 and N 2 K 2 ) increased the number of pods and pods yield per plant, while the greatest yield per hectare was obtained at density planting (D 2 ) receiving higher doses of both fertilizer and lower dose of nitrogen (N 2 K 2 : N 1 K 0 ) at the first and second season respectively. Keywords : Cultivar Djadida; Nutrient Competition; Vegetative Productivity.

Effect of population density and dose of nitrogen and potassium fertilizers on performance of green bean (Phaseolus vulgaris)