Function of Boron
Boron is a micronutrient which is essential to many crops. It is involved with plant health and growth and is particularly important in the development of fruit and foliage, translocation of sugars and reproductive processes.
Boron also assists with the regulation of water balance within the plant cells.
Boron deficiency affects a range of crops including root crops, oilseed rape, field brassicas, other vegetables and horticultural crops.
Boron is water soluble and is readily leached from sandy and light soils. Deficiency can occur in a dry period following a wet winter or spring. Soils with a pH above 6.5 or low organic matter are prone to boron deficiency.
Specific boron deficiencies are often not visible within a crop, the only sign of any ailment being generally poor performance which could be attributed to other factors. However, knowledge of susceptible crops and situations may assist with diagnosis.
Folex B is a high concentration solution containing boron for use when boron deficiency is diagnosed or suspected. Folex B is immediately available to the plant and is suitable for both soil and foliar applications
Applied as directed below, Folex B can improve crop performance by reducing or preventing boron deficiency. Foliar uptake will be enhanced by the addition of NA13¹ unless already in tank mix with a pesticide.
Apply 3-5 l/ha, in a minimum of 200 l/ha water. The spray tank should be filled with half the required water. If applicable, add the required amount of NA13
to the water before the Folex B. After shaking the container, measure the required amount of Folex B and add to the tank whilst maintaining constant agitation.
Add remaining water to correct dilution and spray.
Do not apply in tank mix with pesticides when crop is showing deficiency symptoms, is under stress, or in adverse weather conditions.
¹ NA13 is an adjuvant designed to help with improved adhesion, deposition and penetration of the spray solution on the leaf surface. NA13 should be added at 0.1% of the spray volume, e.g. 100 ml in 100 litres of water. Maintain agitation and apply immediately after mixing.