Abstract
The experiment was conducted on cuttings of Rosa damascena mill L. During the period from mid-March of 2014 until the end of 2015 before the period of formation of flowers for picking at the College of Agriculture/University of Karbala According to the design of complete random sectors, The research included a global experiment with three different factors of the first chemical fertilizer nitrogen fertilization and three levels (0, 0.5 and 1 gm N. Kg -1 soil) and fertilization with the element phosphorus with three levels (0, 15 and 30 mg P2O5. Kg -1 soil) and three levels of Potassium (0, 100 and 200 mg K2O. Kg -1 soil). The results showed that the single effect of the fertilization treatment with nitrogen, phosphorous, and potassium resulted in a significant increase in the characteristic of plant height and number of leaves, and the fertilization treatment with nitrogen and phosphorus component separately resulted in the production of seedlings that were characterized by a high dry green weight compared to the comparison treatment. The data of the bilateral overlap between nitrogen and phosphorous indicate the presence of significant differences, as the treatment with nitrogen component gave a concentration of (0.5 and 1 g. Kg-1) overlapping with the component of phosphorus concentration (30 mg. Kg-1) with the highest significant rate of (39.66 cm). The treatment of the triple interference between nitrogen, phosphorous, and potassium gave a significant effect on all the studied traits.
Published Version
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