Knowledge

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.

All
Cereal
Canola
Soybeans

Boron Deficiency in Wheat

Boron Deficiency in Canola

Leaves exhibiting breakdown of young tissue, signs of Boron deficiency.

Boron Deficiency in Canola

The canola plant on the right exhibits severe Boron deficiency; Roots are showing stunted growth.

Boron Deficiency in Soybeans

Boron Recommended Products

Product	Type	Details
PreCede Canola	Seed Nutrition	Product Details >
PreCede Cereal	Seed Nutrition	Product Details >
Boron 10%	Micronutrient Soil	Product Details >
Boron 15%	Micronutrient Soil	Product details >
Ruffin-Tuff Crop Mix II	Micronutrient Soil	Product Details >
Micro-Che B	Micronutrient Soil	Product Details >
Kinetic Boron	Micronutrient Foliar	Product Details >
NRG CaB	Macronutrient Foliar	Product Details >
NRG KB	Macronutrient Foliar	Product Details >
ReLeaf Canola	Macronutrient Foliar	Product Details >
42PHI Canola	Macronutrient Foliar	Product Details >

Nutrient Knowledge Guide

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