Effect of inoculation with Azotobacter and organic fertilizer on growth and root nodule of Pea (Pisum sativum L. )‎

الملخص EN

The study was conducted during the growing season 2018-2019, fall growing season in the college of Agricultural Engineering Science, University of Dohuk, Kurdistan region, Iraq, to evaluate the effects of inoculation of soil with Azotobacter ,and using seaweeds extract (Alga 600) on two pea cultivars (Pisum sativum L.) which were Ambrosia and Ezolda (B.) were grown in plastic pots in the field.

Results of vegetative growth and quality parameters showed cultivar shows significantly difference as compared with cultivar (A) The results of number of nodules.plant-1, length of nodules and width of nodules (mm),showed cultivar (B) gave high value which were(19.00, 4.444 and 4.132mm) respectively which significantly differ from cultivar triple interaction between Ezolda cultivar , 6m.L-1 seaweeds extract and inoculation the soil with Azotobacter record high value of (20.333 noduls.plant-1)compared with untreated plants that gave lower value (16.

333 noduls.plant---1)