Phosphorous and Zinc are essential elements for plant which can have different effects on different plants. To survey the interaction effects of these elements on Soybean plant, a vase assay in the form of factorial in full random model has been implemented and repeated three times in agricultural year of 2012. Under assay factors included factor A with three level of Phosphorous (0, 50,100 mg/kg) from super phosphate triple resource, and factor B with three level of Zinc (0, 5, 10 mg/Kg) from Zinc Sulfate resource. In overall, the interaction of these elements on Soybean quality features has been different effects and its moderate use leads to increase in Phosphorous, Zinc, and oil in the plant.
