Seyed Mostafa Azimi - M.Sc student, Department of Crop Production and Plant Breeding, Faculty of Agriculture, Islamic Azad University, Boroujed branch, Boroujerd, Iran
Amin Farnia - Assistant professor, Department of Crop Production and Plant Breeding, Faculty of Agriculture, Islamic Azad University, Boroujed branch, Boroujerd, Iran
morad shaban - islamic azad univ of boroujerd
Mohsen Lak - M.Sc in agronomy, Department of Crop Production and Plant Breeding, Faculty of Agriculture, Islamic Azad University, Boroujed branch, Boroujerd, Iran

A study was undertaken to determine the effects of different biofertilizers on growth and seed barley, Bahman cultivar in Iran. The trial was laid out in RCBD with split plot arrangement having three replications during ۲۰۱۱-۱۲ and at Boroujerd, Iran. Treatments were three nitrogen biofrtilizers (Nitroksin, Nitrokara and Supernitroplass) and three phosphate  biofrtilizers (Phosphate barvar۲, Biozarr and Superplass) with control for them. Results shows that differences between application of different bofertilizers was significant. However, application of Supernitroplass biofertilizer with  Phosphate barvar۲ treatment has the highest seed yield (۷.۶ ton/ha) and non-application of biofertilizers treatment has the Pishtaz cultivar has the lowest seed yield (۶.۳ ton/ha). For give the highest seed yield we should apply both nitrogen and phosphate biofertilizers

barley, Seed yield and Biofertilizer