What is the most effective way for boron fertilization in vineyards? Select one:

Question

What is the most effective way for boron fertilization in vineyards? Select one:

a. Apply boron to the soil right before bud break, to avoid deficiencies early on in the growing season

b. Foliar apply boron during the bloom, when B demand by the crop is the highest

c. Foliar apply boron after harvest in fall, to promote B absorption and translocation into the plant and build boron reserves in the plant tissue

d. Foliar apply boron after harvest in fall, to promote B incorporation in the litter and increase B availability through the formation of soluble organic molecules that can move easily through the soil

Explanation / Answer

Option A is correct. Boron should be applied 2 to 3 weeks before bloom. A pre bloom boron application is required in order to get better yield. In case tissues result are unusually low, a second application is fine at the start of the bloom.

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