Influence of Mycorrhizal Inoculation and Different Phosphorus Levels on Broad Bean (Vicia faba L.) Growth, Nutrient Uptake and Yield

During 2022/2023 growing season, the plastic pot experiment was conducted at the College of Agricultural Engineering Sciences, University of Sulaimani, Sulaymaniyah city, Kurdistan Region, Iraq to identification the effect of application 20 g kg-1 soil Arbuscular Mycorrhizal Fungi (Glomus intraradices) once time before planting, also application five levels of phosphors (0, 40, 80, 120 and 160) kg ha-1 once time before planting on broad bean plant growth, nutrient uptake and total yield. The experiment performed in completed randomized design (CRD) with three replications in silty clay soil. Before harvested the plant height and chlorophyll intensity was measured and then the plants were harvested to measured shoot dry weight, root dry weight, root colonization, pods numbers per plant and yield per plant and after the N, P, K, Fe, and Zn were measured in shoot plant. The results showed that the 160 kg phosphors per hectare with mycorrhiza caused significantly increase, chlorophyll intensity, shoot and root dry weight, nitrogen, phosphor and potassium content in shoot system with the value of (82.67 cm, 48.90 SPAD, 16.90 g, 7.70 g , 53.10 g kg-1, 14.77 g kg-1, and 39.50 g kg-1) respectively, while the interaction treatment of P level 80 kg P ha-1 with mycorrhizal inoculation gave the highest values of root colonialization, Fe and Zn content which were (68.00%, 378.33 μg g-1 and 293.00 μg g-1) respectively. On another hand, mycorrhizal inoculation with 120 kg ha-1 phosphorus recorded the significantly highest values for number of pods per plant and plant yield were (30.90 pods plant-1 and 721.17 g plant-1) compared with control.