This work deals to characterize the iron ore from Jerissa and to study the effectiveness of their application as a mineral amendment in alkaline soils for the correction of ferric chlorosis in young forest seedlings in nurseries. For this purpose an experiment was conducted in pots on two species (cork oak "Quercus suber L." and Aleppo pine "Pinus halepensis") grown on a sandy substrate. The experimental protocol is in complete random blocks, two ferrous amendments (siderite (ST) and Hematite / Goethite (HT)) with three increasing doses (25.50 and 100 mg / pot) and 8 repetitions for each. A follow-up of heights and neck diameters was performed during the test, AAS analyzes of iron content in the plants and substrates to confirm the possibility of their use in agronomy as an amendment were made. The application of iron ore Jerissa (ST and HT) as a ferrous addition of a mineral-poor sandy substrate causes a slight improvement in the nutritional status of iron in plants (cork oak and Aleppo pine) compared with results obtained by EDDHA / Fe, which could be explained by the low solubility of iron in water.