The trial was conducted on 20 15-m-long rows (one plot/row),
with 12 plants of each treatment located within the center of the
row. Plants were spaced 46 cm apart within the row and rows were
1.5 m wide. The grafting treatments were randomly assigned to
each row within a given block and rows were 1.5 m apart. Blended
preplant fertilizer (13-34-10) was applied as N at 87 kg/ha, and six
Ca(NO3)2 fertigation events were supplied as N at 16.8 kg/ha each
on 24 June; 1, 15, and 29 July; and 5 and 12 August.