Yield response of tobacco to different levels of nitrogen and potassium on alluvial soil in Kelantan

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A.C. Leong

Abstract

All the treatment combinations yielded significantly higher compared to the control. The yield response to nitrogen was linear. The level of nitrogen at 50.4 kg ha-1 yielded significantly higher than the levels of 33.6 to 44.8 kg ha-1 with no significant differences between N treatments up to 44.8 kg N ha-1. No deterioration of the visual quality of the cured leaves was observed at 50.4 kg N ha-1. No significant yield difference was detected between the different levels of potassium. The best treatment combination was a1 39.2 kg N ha-1 and 168.1 kg K2O ha-1 which approximated to the value obtained from differentiation of the multiple regression equation.

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