A two field experiments were carried out in a special farm at "Mitt Sharaf" Dekerniss distract, Dakahlia Governorate, Egypt during the two successive wintery seasons of 2003-2004 and 2004-2005 to study the effect of foliar spray with a biological promoters, fertilization with different nitrogen sources, with or without inoculation with biofertilizers and their interactions on growth, chemical contents and yield, as well as, yield components of pea plants (Pisum sativum L.) cv. Master-B. The split-split plot system in a randomized complete block design with three replicates was used in both growing seasons. The chemical and organic fertilizers (farmyard manure, chicken manure and compost) were randomly located in the main plots, whereas, the sub-plots were devoted for the foliar treatments (yeast extract and biomagic). The biofertilizer treatments (with and without inoculation with Rhizobium + Mycorrhiza) were assigned to the sub-sub plot. By comparing the N-sources (as a single factors), the best treatment is the control followed by chicken manure followed by F.Y.M and the compost came in the last. By comparing the foliar application treatments, there is no significant difference between the yeast extract and the biomagic, whereas, these two treatments (each of them) is better than without. As well as the inoculation with biofertilizer (Rhizobium + Mycorrhiza) is better than without. The higher values of total green pod and dry seed were obtained from plants which received the chicken manure fertilizer, sprayed with yeast extract or biomagic and inoculated with biofertilizer comparing with other organic fertilizers sources. This treatment gave a total green and dry seed yield values more than that has the chemical fertilizer (control). By conducting on economical estimation, it appears that the treatment of the triple interaction (chicken manure + yeast extract + biofertilizer) gave 2.19 fold as a net return comparing with control.