Abstract :
In order to investigate the effect of drought stress and different amount of nitrogen and phosphorus fertilizers on seed yield and oil yield of coriander, an experiment was conducted at research field at Khorramabad-Lorestan, Iran in 2010. Field experiment was carried out by split factorial design with 3 replications. The factors studied included two levels of irrigation, irrigation after 30mm evaporation from evaporation pan (without drought stress condition) and irrigation after 70mm evaporation from evaporation pan (drought stress condition), nitrogen levels were N0,N60,N90,N120 Kg/ha and phosphorus levels were P0,P80,P100,P120 Kg/ha. The results showed that irrigation, nitrogen and phosphorus fertilizers had significant effect on oil yield and seed yield. Mean comparisons showed that highest oil yield and seed yield was obtained from irrigation after 30mm evaporation from evaporation pan and application of 90 kg/ha nitrogen and 100 kg/ha phosphorus (I30N90P100).
