-3-010 Effect of macroelements on yield, agronomy efficiency, physiological efficiency and recovery efficiency of nitrogen and potassium in flue cured tobacco Ali

P-3-010 Effect of macroelements on yield, agronomy efficiency, physiological efficiency and recovery efficiency of nitrogen and potassium in flue cured tobacco Ali Reza Farrokh Institute of Botany, Baku, Azerbaijan In order to investigate the effect of nitrogen and potassium fertilizers on yield and agronomy efficiency, physiological efficiency and recovery efficiency of nitrogen and potassium of cv.Coker347 and cv.K326 of Flue-cured tobacco, 2 year experiment was carried out in Tobacco Research Institute of Rasht located in Guilan province on factorial based with 3 replications. The applied fertilizer levels included 35 (N1), 45 (N2), 55 (N3) and 65 (N4) Kg pure nitrogen/ha-1 of from urea source, and potassium in two levels of 150 (K1) and 200 (K2) Kg K/ha-1 from potassium Sulfate source. measured parameters in this experiment included dried leaf yield, green leaf yield, agronomy efficiency of nitrogen, physiological efficiency of nitrogen, recovery efficiency of nitrogen, agronomy efficiency of potassium, physiological efficiency of potassium and recovery efficiency of potassium. Effect of year on dried leaf yield, agronomy efficiency of nitrogen, agronomy efficiency of potassium, physiological efficiency of potassium and recovery efficiency of potassium was significant (p<0.01). Effect of variety on agronomy efficiency of nitrogen and green leaf yield was significant on 1% and 5% levels respectively. Nitrogen had significant effect on recovery efficiency of nitrogen and recovery efficiency of potassium on 1% and 5% levels respectively. Potassium had also significant effect on dried leaf yield, agronomy efficiency of nitrogen, recovery efficiency of nitrogen (p<0.01). Key Words: Nitrogen, Potassium, Yield, Agronomy Efficiency, Physiological Efficiency and Recovery Efficienc

01). Key Words: Nitrogen, Potassium, Yield, Agronomy Efficiency, Physiological Efficiency and Recovery Efficien