Calcium deficiency is seen in old brittle leaves & young leaves covered with discoloured areas at the edge of the lamina which then become dark brown in colour. Cal_Bo easily replenish this deficiency.

Boron deficiency is prevalent just after the periods of Drought, which restricts the growth of terminal bud due to which leaves become dark green, thick and crinkled resulting in the death of growing point.This can be overcome by Cal_Bo.