The effect of foliar fertilization with normal and nano sulfur and the interaction between them in some vegetative characteristics, plant pigments content and dry weight of the shoot system of two varieties of leek plans Allium ampeloprasum L.

This study was conducted to determine the effect of foliar fertilization with normal and nano-sulfur fertilizer and the interaction in the characteristics of vegetative growth and plant pigments for two varieties of leek (local and imported). Two levels of normal sulfur fertilizer (1 and 2g.L^-1) were used and two levels of sulfur nano-fertilizer (1 and 2mg. L^-1). The experiment was applied using Split split– Block design in complete randomized block with three factors and three replicates. Significant differences were recorded between the levels of fertilizer used for growth traits (plant height, number of leaves, leaf area, leaf width, total chlorophyll content, and carotenoids content). The local leek recorded the highest average values of traits (plant height 32.71cm, number of leaves 11.95 leaves. plant^-1, leaf area 166.50cm², total chlorophyll content 1.426mg.g^-1 fresh weight) compared with the imported leek, which recorded the following values as 29.71cm, 8.79 leaves.plant-1, 145.14 cm², plant^-1, and 1.294mg.g^-1 fresh weight, respectively. There was no significant increase in the average leaf width between both the local, which recorded 1.77cm², and the imported variety, which recorded 1.62cm². The average content of carotenoids recorded a significant decrease of 0.509mg.g^-1 fresh weight for the local variety and 0.464mg.g^-1 fresh weight for the imported variety.