347Effects of Macro Fertilizers on yield and yield Components of Flue-cured Tobacco Coker

P-3-007 Effects of Macro Fertilizers on yield and yield Components of Flue-cured Tobacco Coker 347 Ali Reza Farrokh Institute of Tobacco, Rasht, United Iran In order to investigation effects of nitrogen and potassium fertilizers on yield and Components yield of Flue-cured tobacco, an experiment was done in agronomical year 2008 in Rasht City Tobacco Research Institute located in Guilan Province in design of factorial with 3 replication. Fertilizing levels used, were including: (N1) 35, (N2) 45, (N3) 55 and (N4) 65 Kg/ha and (K1) 150 and (K2) 200 Kg/ha. Yield of dry leaf, length of shrub, diameter of stalk and number of leaves in shrub were studied. Results showed that, effects of fertilizing levels on yield of Flue-cured tobacco in probability level of 1% on length of stalk, diameter of stalk and number of leaves in shrub in probability level of 5% and on diameter of stalk became significant. Potassium became significant on yield of dry leaf, length of stalk and number of leaves in shrub in probability level of 1% and on diameter of stalk in probability level of 5% became significant. Also, interaction effects of nitrogen and potassium on yield of dry leaf in probability level of 5% and on number of leaves in shrub in probability level of 1% showed a significant effect. Key Words: Macro Fertilizer, Performance, yield Components and Flue-cured Tobacco

Key Words: Macro Fertilizer, Performance, yield Components and Flue-cured Tobacco