Response of Growth and Yield of True Potato Seed Plants to Foliar Application with Organic Nutrients
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Abstract<p>The experiment was carried out in the spring season of 2017 in the open fields of the College of Agricultural Engineering Sciences/University of Baghdad/Al-Jadriya camps in order to improve the growth and yield of potato plants resulting from the cultivation of true potato seeds of the hybrid BSS-295 by spraying with two organic nutrients. The experiment included two factors: First one was spraying with Megafol nutrient at concentrations 0, 1, 2 and 4 ml l<sup>-1</sup> and the second was spraying with Algazone nutrient at concentrations 0, 1.5 and 3 ml l<sup>-1</sup>, the experiment was applied according to the complete randomized block design with three replications and the averages were compared according to the LSD test 5%. The results indicate that spraying Megafol at a concentration of 4 ml L<sup>-1</sup> led to a significant increase in plant height (64.60 cm), and plant yield (214 g plant<sup>-1</sup>). Spraying Algazone at a concentration of 3 ml L<sup>-1</sup> led to a significant increase in plant height (56.47 cm), number of total stems (7.07 stem plant<sup>-1</sup>), leaf area (0.822 m<sup>2</sup> plant<sup>-1</sup>), number of tubers (9.56 tuber plant<sup>-1</sup>), and the yield of the plant (144.90 g of plant<sup>-1</sup>). The interaction between Megafol 4 ml L<sup>-1</sup> with Algazone 3 ml L<sup>-1</sup> gave the highest value of plant height, number of total branches, chlorophyll content of leaves, tuber weight and plant yield (67.17 cm, 9.15 stem, 374.90 mg 100 g<sup>-1</sup>, 18.77 g. tuber<sup>-1</sup>, 235.00 g.plant<sup>-1</sup> Respectively).</p>
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