In order to study the effects of phosphorous, nitrogen chemical fertilizers and biofertilizer vermicompost on seed yield and yield components (Kimia CV.) in the dry land conditions an experiment was conducted at khoramabad city in 2011-2012. The experiment design was factorial experiment in the base of randomized complete blocks design with four replication . the factors were season planting (Autumn and spring)and fertilizer (V1 = Non use fertilizer ) , (V2 = 24 hg/ha phosphate ammonium ) , (V3 = biofertilizer vermicompost 3636 kg/ha ) and (V4 = phosphate ammonium 24 kg/ha + vermicompost 3636 kg/ha ) . Analysis of variance showed that the effect of the growing season on yield and yield components was significant at the one percent level. Fertilization effect and interaction of planting season and fertilizing on any of these traits was not significant. Result showed that the highest seed yield was obtained through autumn planting and season planting were significant on yield components. There was positive and significant correlation between seed yield with yield components.
