Onion

{Allium cepa}

Boron Deficiency in Onion

Boron deficiency in onions causes leaves to turn blue/green, and the younger leaves become mottled with distorted shrunken areas. Cracks may appear on the upper surface of the lower leaves, which become stiff and brittle. Root development is poor. Over-wintering may be impaired by boron deficiency.

Soil Application (Suggested rates of application)

  Granubor 2 Fertibor
LBS./ACRE 6-13 6-13
KG/HA 6.75 - 14.63 6.75 - 14.63

Foliar Application (Suggested rates of application)

  Solubor
LBS./ACRE 4-9
KG/HA 4.5 - 10.125

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