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This experiment was carried out in the form of factorial split in the model random complete block design in three replicates. In this design three kinds of durum wheat including Yavarous, Karkheh, Seimareh were planted in the main plots and three levels of 40, 80 and 120 kg net nitrogen in hectare which it had been provided from source of urea and three levels of bio fertilizer including Azotobacter spp. and Azospirillum spp. and without using bio fertilizer (control) as factorial were cultivated in secondary plots. Before cultivation, amount of seeds which it must be mixed with together Azospirillum spp. and Azotobacter spp. bacteria’s, it was mixed together water and sugar with 2% density of wet and in proportion of 2 kg in 100 kg seeds were mixed with seeds. The irrigation of blocks was separately done for preventing from mixture of bacteria. This research will have a new asped for/in order to effect of biological fertilizers in replacement with/to fertilizers and it hasn't demonstrate its comparison on durum wheat in the region by now. Finally, with interpretation of results obtained from this research defined that positive effect of biological fertilizers on growth that before they have verified about plants, also, they are true about grains such as wheat. So, considering the obtained results from this research, it is seemed that application of suitable biological fertilizers can be effective in increase of function, improvement of growing traits of wheat and decrease nitrogen fertilizer.

cercetări agronomice în moldova

The Study Effect of Nitrogen, Azotobacter Spp. and Azospirillum Spp. on Phenological and Morphological Traits of Durum Wheat Cultivars in Dehloran Region, Iran