Linseed / Flax

{Linum usitatissimum}

Boron Deficiency in Flax Linseed

The young leaves are chlorotic and, in cases of severe boron deficiency, the growing points ultimately die. Shoots will develop from many nodes. Growth is generally reduced and the stems may be:

  • Thick
  • Twisted
  • Possibly fasciated

The tips of the shoots turn yellow, wilt, and die.

In old plants, the top part may be affected while the lower part remains healthy. Seed and straw yield is reduced and the fiber may be poor quality. Boron deficient flax appears more susceptible to Fusarium than healthy flax.

Roots are dark and short when boron deficiency is severe.

Soil Application (Suggested rates of application)

  Granubor Fertibor
LBS/ACRE 3-9 3-9
KG/HA 3.38 - 10.13 3.38 - 10.13

Foliar Application (Suggested rates of application)

KG/HA 2.25 - 6.75
Value in Use
Current Yield (Per Acre)
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.

Copyright © 2024 Rio Tinto. All Rights Reserved.