2 or 4 application within of 1-2 month earlier through foliar Spraying of Calcium nitrate -Ca(NO3)2 (15-0-0-19 ) 0,6 - 1,0 kg/100 L solution (500 L/ha) will has benefits, during of this application is reducing ratios of N/Ca, K/Ca, but basically for bitter bit control, rather than superficial scald... for superficial scald control needs DPA drenching and/or MCP application after harvest...