This study was conducted in the college of education for pure science at Diyala university in Iraq. The experiment included planting tomato seedlings, class (Genan) in the field according to design of R.C.B.D. The experiment included eight treatments resulted from the interaction between the inoculation factor with Trichoderma harzianum and Mycorrhiza, Glomus mosseae fungus, and the factor of the addition of Humic acid. Each treatment repeated three times. The results showed that the individual application of the inoculation with T.harzianum and G.mosseae led to a significant increase in the number of flowers, number of holding flowers, content of nutrient in leaves. The results also showed that the individual addition of organic fertilizer with Humic acid led to a significant increase in same features. The results of interaction treatments between inoculation with bio-fertilizers and organic fertilizer also showed a significant increase in all studied features and excelled in all treatments that reached to 70.66, 43.00, 4.45%, 0.540%, 3.85% with increase of 96.27, 115, 34.03, 82.43, 52.17% in the number of flowers, number of holding flowers, the concentration of N, P, K elements respectively compared to the control treatment.
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