Abstract:
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.
