| The experiment was carried out in the lath house of Horticulture and Gardening Engineering Dept. / College of Agriculture / Al- Anbar University during the growth season to study the effect of foliar spraying with chelated iron at three levels 0, 50 and 100 mg L-1 and symbols F0, F1 and F2 and three levels. From marine algae extract 0, 1 and 1.5 g L-1 and its symbol S0, S1 and S2, and their interaction in vegetative growth traits and leaves content of mineral elements for buckthorn seedlings AL-Tafahi cultivar, the results showed the positive effect of foliar spraying with chelated iron in most Characteristics of vegetative growth and the content of buckthorn seedlings. So, spraying 100 mg L-1 chelated iron significantly superior in Original stem diameter, bait stalk diameter, Percentage of dry matter in leaves, phosphorous, potassium, saponins in succession, which amounted to 8.034 mm, 6.922 mm, 33.074%, 0.410%, 1.308%, 1.215gm ml-1, sequentially. As for spraying 50 mg L-1, it was significantly superior to nitrogen and total protein, respectively, as it reached 1.706%, 10.658%. The spraying with seaweed extract Alga Mix 1.5 gm L-1 resulted in a significant superiority in all characteristics of vegetative growth and leaf content of nutrients except for Percentage of dry matter in leaves, as it led to a significant increase in Original stem diameter, bait stalk diameter, total protein. Nitrogen, phosphorous, potassium, saponins, respectively, amounted to 7.968 mm, 6.857 mm, 12.641%, 2.456%, 2.045%, 0.420%, 1.289%, 1.189 g ml-1, the results showed that the interaction between the studied treatments (chelated iron 100 mg L-1+ seaweed extract 1.5 g L-1) gave a significant increase in Original stem diameter, bait stalk diameter, Percentage of dry matter in leaves, phosphorous, potassium, saponins, respectively, amounted to 11.667 mm, 10.333 mm, 35.272%, 0.433% , 1.730%, 1.545 gm ml-1 sequentially compared to the control treatment, while the interaction (chelated iron 50 mg L-1 + seaweed extract 1.5 gm L-1) gave a significant increase in the percentage of nitrogen in the leaves and the percentage of total protein, respectively, which amounted to 2.468 %, 15.420% sequentially compared to the comparison treatment. |
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