TY - JOUR AU - Mayi, Azad A. AU - Ibrahim, Nawzad J. PY - 2015/06/30 Y2 - 2024/03/28 TI - Effect of Cultivars, Compost, Humic Acid and Their Interactions on Leaf Nutritional States of Sweet Cherry (prunus avium l.) JF - Science Journal of University of Zakho JA - SJUOZ VL - 3 IS - 1 SE - DO - UR - https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/107 SP - 97-106 AB - <p>the present study was carried out on sweet cherry (<em>Prunus avium&nbsp;</em>L<em>.</em>),&nbsp;during the growing season of (2012-2013) on private sweet&nbsp;cherry&nbsp;orchard, located in the Bibad village near Amadi town / Duhok governorate- Kurdistan region-Iraq. The field experiment was done in the orchard that contained two sweet cherry cultivars (“Nefertity” and “Berlit”). The application of compost was done in December 25<sup>th</sup>&nbsp;2012, at (0, 2, 4 and 6 kg /tree), foliar spray of humic acid done at (0, 100, 200 and 300 ppm) and repeated after two weeks.&nbsp;The results are summarized as follows: Nefertity cultivar significantly dominated over Berlit cultivar in leaf N, P content, whereas Berlit cultivar dominated leaf (N, K, Ca). Compost specially at 4kg/tree has significantly improved leaf P, K,whereas, compost at 6 kg/tree leaf nutrient N. Humic acid&nbsp;specially&nbsp;at 300 ppm has significantly increased the leaf nutrients N, P, while, 200 ppm&nbsp;increased&nbsp;the leaf K, while, 100 ppm&nbsp;increased&nbsp;the leaf N, K.&nbsp;The interactions between cultivars, compost and humic acid has affected significantly most of the studied parameters. The more effective treatment interactions was Nefertity + 6 Kg /tree of compost plus 200 ppm of humic acid which increased significantly P,K, but Nefertity + 6 Kg /tree of compost plus 300ppm of humic acid treatment increased leaf&nbsp; N content.</p> ER -