Boron has the power to impact many important processes including stomatal activity, photo assimilate movement, disease resistance and insect infestation, and overall plant growth and yield.

Quick Facts About Boron

  • Boron is essential for the plant growth and cell development.
  • Essential for seed and fruit development.
  • Improves stability and function of cell wall membranes.
  • Promotes synthesis of structural carbohydrates in the cell wall.
  • Flowering and nodule formation depend on adequate Boron.
  • Boron plays roles in formation of sugar complexes for translocation within plants, and in the formation of proteins.
  • Form used by plants: H3BO3, B(OH)-4 (at high pH).

Role of Boron in Plants

  • Essential for elongation of pollen tubes.
  • Regulates metabolism of carbohydrates.
  • Facilitates the synthesis of nucleic acids.
  • Maintains cell wall integrity of roots to reduce beneficial root exudates.
  • Essential for cell division and development. 
  • Aids in the use of nutrients and regulates other nutrients.
  • Aids production of sugar and carbohydrates, and is essential for seed and fruit development. 
  • Enhances uptake of Calcium, Magnesium, and Potassium; enables sugar translocation.

Boron Deficiencies:

Deficiency Symptoms

  • Poor seed set or fruit set.
  • Causes breakdown of growing tip tissue.
  • Reduction in root formation and roots become “leaky”
  • Reduction in new growth, followed by death of younger leaves.
  • At Boron concentrations 12 ppm or less for dicot plants, terminal buds die and shoot dieback takes place.
  • Deficiency in alfalfa – yellowish to reddish yellow discoloration of the terminal foliage.
  • Breakdown of root crops such as beets and turnips, which develop corky dark discolorations.
  • Rhizobia development in the roots of legumes is inhibited.

Factors Affecting Deficiencies

  • Low soil moisture.
  • Coarse textured, well drained, sandy soils and soils with low organic matter can all reduce Boron availability.
  • Soil with high organic matter will have greater availability of Boron.
  • Soils with high levels of available Calcium may require additional applications of Boron.
  • Boron deficiencies decrease the rate of water absorption, root growth, and translocation of sugars in plants.

Boron Recommended Products

Product Type Details
PreCede Canola
Seed Nutrition
PreCede Cereal
Seed Nutrition
Micro-Che B
Micronutrient Soil
Impel Boron
Micronutrient Foliar
ReLeaf Canola
Macronutrient Foliar
ReLeaf Cereal
Macronutrient Foliar
ReLeaf Corn
Macronutrient Foliar
ReLeaf OS
Macronutrient Foliar
42PHI Canola
Macronutrient Foliar
Laser CaB
Macronutrient Foliar
Laser KB
Macronutrient Foliar
Laser KS
Macronutrient Foliar
Laser P
Macronutrient Foliar

Nutrient Knowledge Guide

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