Boron – Its role in nutrition: In cases where boron cannot be taken due to deficiency or excess calcium in the soil; the top buds do not last, if it does, the small leaves dry up and the tip of the branch becomes dry. On young fruits, violet-colored spots are seen in places. Here, the crust thickens and necrosis penetrates into the flesh. In slight deficiencies, the shell becomes rough, there is not much damage inside.