J. Product. & Dev., 19(3):313 – 332(2014) BIO-FERTILIZATION AND ITS IMPACT ON QUALITY AND PRODUCTIVITY OF SOME NEW PEA (PISUM SATIVUM L.) CULTIVARS W. M. Abdel-Hakim; ** Y. M.M. Moustafa ** and K. A.M. Nour * * Self-Pollination Vegetable Res. Dept., Hort. Res. Inst., ARC, Giza, Egypt ** Department of Horticulture, Faculty of Agriculture, Minia University, Minia, Egypt. **Corresponding author: yasser.mostafa＠mu.edu.eg ABSTRACT Three different pea cultivars Master B، Jaguar and Palmoral were used in this investigation to study the effect of cultivars and different doses of N mineral fertilization along with three isolates of N 2 -fixing bacteria (Rhizobium) on growth, yield and chemical composition of those cultivars. Results showed that the three cultivars varied in their flowering time and yield production and almost behaved different under mineral and bio-fertilization. The bio- fertilization increased the plants vegetative growth, yield and yield components. Furthermore, the bio-fertilization increased the quality of seeds and their protein content, but reduced their contents of nitrate and nitrite in comparison with those fertilized by N mineral fertilization only. Key words: Peas, New Cultivars Evaluation, Mineral and Bio- Fertilizations, Organic Production. INTRODUCTION Field pea (Pisum sativum L.) derives from the Middle East and was first cultivated roughly 10,000 years ago (Mithen, 2003; Gad El-Hak et al., 2012). Pea is a very nutritious vegetable grown in the cool season in different regions of the world. It is grown as a vegetable crop for both fresh and dried seeds. Pea contains high percentage of digestible protein, along with carbohydrates and vitamins (Davies et al., 1985 and Akhilesh and Singh, 2013). A wide range of genetic variability is available in pea, providing a good scope for improvement in yield and associated characters of pea through selection. Selection among cultivars and lines for different purposes is very crucial nowadays (Gheeth et al., 2012). It has been recognized that fertilizers are effective means to increase the yield of vegetable crops and to reduce the shortage in food supplies