Skip to Content

Nutrient Benefits


  • High K
  • Low N


  • Boron stimulates Calcium translocation


  • Cell division
  • Translocation of Ca
  • Protein synthesis
  • Carbohydrate metabolism
  • Pollen viability
  • Pollen and fruit set and formation
  • Hormone formation

Deficiency Symptoms

  • Thick, curled, brittle tissues
  • Cracking, splitting tissue, sometimes with gummosis
  • Reduced flowering, seed set and fruit set
  • Growth points can die, forming multiple side shoots
  • Small, misshapen fruit
  • Internal flesh disorders in fruits

Factors Affecting Availability

  • High pH soils
  • Over limed soils
  • Soils with high levels of N and/or Ca
  • Sandy soils that are easily leached
  • Soils with low organic matter
  • Cold, wet weather (especially following a long dry spell)

Sensitive Crops

  • Cotton, barley, corn, oats, sorghum, sunflower, clover, alfalfa, navy beans, soybeans, citrus, nuts, pome fruit, stone fruit, root crops, vegetables, oilseeds, canola, wheat


The following OMEX products can assist with addressing and correcting Boron deficiency:

Visual Guide