Effect of Biofertilizers on the Growth and Yield of Wheat Grown Under Water Stress

The experiment was conducted on one of the farms in Babylon Governorate, the Nile region, during the winter agricultural season 2021-2022, to grow the wheat crop, TritiSum aestivum. To study the effect of water stress and biofertilizers on wheat growth, the experiment included two factors, the first being water stress. Where the irrigation was conducted taking into account the non-mixing of the irrigation water between the experimental units due to the different additions to each experimental unit. The second factor included the biofertilizers (Azotobacter chroococcum, mycorrhiza and Trachoderma fungus) in addition to the control treatment and symbolized by the symbol (F0, F1, F2 ,F3) a completely randomized block design (RSBD) by arranging the factorial experiments with two factors and the same importance for all treatments (Factorials Experiments and calculating the differences between the averages of the values by the Least Significant Difference (LSD) test at the probability level of 0.05. The results are as follows: F2 treatment was significantly excelled and gave the highest values for traits of plant height 67.53cm, grain yield 4.68 Mg.ha-1, weight of 1000 grains 28.38 g, percentage of nitrogen, phosphorus and potassium in the leaves(2.61,1.11,3.38%). S0 and S2 treatments excelled and recorded the highest values for most of the studied traits. The interaction treatment of F2*S0 recorded significantly higher values for traits plant height 68.85cm, grain yield 5.26 Mg.ha-1, weight of 1000 grains 29.54 g and The interaction treatment of F2*S2 recorded significantly higher values for traits percentage of nitrogen, phosphorus and potassium in the leaves(2.91,1.41,3.80)%