Abstarct: In order to investigate the effect of different doses of foliar Fusyn(nitrogen) in the phenological stages on yield and yield components of rice(cultivar Hashemi ), a factorial experiment in a randomized complete block design with three replications, in a farm located in the city of Chalus in crop year 1391 was carried out. Fusyn three fertilizer rates : zero (control), three and five liters per hectare and phenology of four stages including tillering, stem elongation, heading, grain filling were considered .these results showed that among studing adjectives, the height of the herb,the area of the stamen leaf, total tiller per plant, the number of fertile tiller per plant, the number of the whole seeds, seed function under the Fusyn fertilizer and phenology stages significant effect. However, the weight of the thousand seeds, affected by nitrogen fertilizer and various stages , was not and did not show any significant effect. Maximum consumption of 5 liters per hectare yield of nitrogen equal to (289.2 grams per square meter) and lowest performance to a lack of nitrogen use (265.5 gr/m2), respectively. The maximum and minimum yield for different application phases, respectively, at the time of tillering (289 gr/m2) and heading (253 gr/m2) was observed. The highest yield interaction fertilizer Fusyn × growth stages for the treatment F2T1 (consumes 5 liters of nitrogen at the time of tillering) to (336 gr/m2) was calculated as the maximum number of tillers, fertile tillers and number of grains affected by this treatment were lowest for treatment F0T3 (lack of nitrogen use when¬heading)equals(235gr/m2)were,obtained.