The Effect of Nitrogen and Phosphorus Fertilization and Planting Space on Vegetative Growth, Flowering and the Essential Oil Content of Dianthus caryophllus.

Ali Farook Al- Ma'athidi, Abd-Alkreem Araibi Saba, Husaen Ali Hendi

Abstract


This experiment included three factors: First, three plant spacing. Second, three levels of Nitrogen fertilizer. Third, three levels of Phosphorus fertilizer. The results showed that high levels of nitrogen and phosphors added to plant spacing 20*20 cm had caused increased in length stem flower , number of leaves, diameter of stem flower and vase life (50.86 cm, 9.18 leaves , 9.10mm , 7,92 day) respectively. While the middle level of nitrogen and high level of phosphors added to plant spacing 10*10cm caused a increase in weight of flower, weight of petals and diameter of flower (2.85 gm, 1.94 gm , 54.21 cm) respectively. While the middle level of nitrogen and high level of phosphors added to plant spacing 30*30cm caused a high number of flower (25.27) that significant increase for most treatment. The results showed that high levels of nitrogen and phosphors added to plant spacing 30*30 cm had caused high essential oil content (332.01) mg/100 gm because of a significant increase in contents salicylate, camphene , methyl benzoate and limonene (1684.20 , 1162.80 , 2886.85 , 1701.05) µg/ 5 gm respectively.

Keywords


Ornamental Plants; Carnation ; Nutrition; Fertilizer; Planting Space; Nitrogen; Phosphorus

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