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Plum

{Prunus domestica}
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Boron Deficiency in Plums

Tip dieback and leaf fall, particularly on the upper branches, can be expected, but the main symptoms of boron deficiency in plums are formed on the fruit. Brown sunken areas appear in the flesh and sometimes gum pockets are also formed. Multiple branching is prominent at the tops of the trees. Flowering is seldom impaired by boron deficiency but as very many flowers fail to develop, there is usually a marked reduction in fruit set.

Soil Application (Suggested rates of application)

  Granubor Fertibor
LBS/ACRE 9.0 - 12.5 9.0 - 12.5
KG/HA 10.0 - 14.0 10.0 - 14.0

Foliar Application (Suggested rates of application)

  Solubor
LBS/ACRE 3.6
KG/HA 4.0
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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