Effect of foliar sprays of some nutrients on some vegetative and yield traits of grape cv, Black Hamburg ( Schiava Grossa L. )
Maǧallaẗ al-Anbār li-l-ʿulūm al-zirāʿiyyaẗ/Maǧallaẗ al-anbār li-l-ʻulūm al-zirāʻiyyaẗ