The large use of chemical fertilizers in fruit orchards often results in some problems, such as the loss of a large amount of the added nitrogen through the bioreduction of nitrates or through the leaching of the nitrogen element through ground water, ultimately causing environmental pollution and harm to human health, as well as Excessive use of chemical fertilizers, especially nitrogenous ones, leads to environmental pollution. As a result of all these bad effects of the irrational use of chemical fertilizers, the interests of many countries have recently turned towards searching for natural alternatives to chemical fertilizers with the aim of reducing environmental pollution and reducing agricultural production costs, and at the same time producing safe, healthy food.The study was carried out with the aim of demonstrating the effect of foliar spray with three concentrations of amino fertilizer (Delfan plus) (0, 3 and 6 ml.L-1) and liquid organic fertilizer (compo) (0, 6 and 8 ml.L-1) on the growth and mineral content of seedlings sour orange and Poncirus trifoliata, as fertilization was done in four batches starting from 3/20/2022, with 20 days between batches and the next. The results showed that the type of citrus (sour orange and Poncirus trifoliata ) did not have a significant effect on the studied traits, while the fertilizer treatments for both Delfan plus and combo resulted in a significant superiority. especially the high concentrations of 6 and 8 ml. L-1, respectively, Where it caused the highest values in all the characteristics studied (increase in the height and diameter of seedlings and the leaves content of chlorophyll, nitrogen, phosphorus, potassium, and protein).