Cabbage

{Brassica oleracea var. capitata}

Boron Deficiency in Cabbage

The characteristic symptom of cabbage boron deficiency found in the field is the breakdown of the pith of the stem—easily seen when the head is split vertically. Water-soaked spots first develop in the pith, the tissue gradually becomes necrotic, and sometimes a cavity may form.

If the deficiency occurs at the young seedling stage, the new leaves will be small and distorted and often thicker than normal. The death of the growing point can follow, but this is not expected under field conditions. Boron deficiency occurs more often on cauliflower and broccoli than on cabbage.

Typical recommended ranges for boron boradcast soil application for cabbage is 2-3 lbs of B/acre. Normal plant analysis levels for the best quality and marketability have leaf boron levels in the 25-50 ppm range.*

*Always consult local crop advisors to check the proper dose rates. Rates of boron fertilization should be based on yield goals along with soil tests and/or plant tissue analyses.

Soil Application (Suggested rates of application)

  Granubor Fertibor
LBS/ACRE 6.25 - 12.5 6.25 - 12.5
KG/HA 7.0 - 14.0 7.0 - 14.0

Foliar Application (Suggested rates of application)

  Solubor
LBS/ACRE
KG/HA 2.8
Value in Use
Product
Acreage
Current Yield (Per Acre)
Lbs
Expected Sale Price

U.S. Borax, part of Rio Tinto, is a global leader in the supply and science of borates—naturally-occurring minerals containing boron and other elements. We are 1,000 people serving 650 customers with more than 1,800 delivery locations globally. We supply around 30% of the world’s need for refined borates from our world-class mine in Boron, California, about 100 miles northeast of Los Angeles. Learn more about Rio Tinto.

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