Boron deficiency made worse by
- Sandy soils
- Alkaline soils
- Soils low in organic matter
- High levels of nitrogen
- High levels of calcium
- Cold wet weather
- Periods of drought
Boron is important for
- Improves bud development
- Improves flowering
- Improves fruit set
- Gives better skin finish
- Reduces storage disorders
Yara recommended fertilizers for Boron
YaraVita® BORTRAC™
Apples: 1 pint/acre at pink bud, start of flowering and again at petal fall. Also, 1 pints/acre after harvest but before leaf senescence. Water rate: 50 to 100 gallons/acre.
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Apples: In the Spring apply 5 to 10 lbs/acre applied at bud burst. Reapply after fruit set during sizing in 10 to 14 day intervals. 5-10 lbs/acre applied post-harvest before leaf senescence. Water rate: minimum 25 gallons/acre. Foliar application of Bud Builder may leave a white residue-deposit on the leaf or crop when applied close to harvest.
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Apple: 3 pints/acre applied between bud burst and just before the start of flowering. Do not apply during flowering. Also, apply 3 pints/acre post-harvest before leaf senescence. Water rate: 50 to 125 gallons/acre.
Read more about YaraVita® PHOTREL™ADVANCE SCYaraVita® POWERBOR™ Ca
Apple: Several applications of 1 to 2 quarts/acre beginning at pink bud, start of flowering, at petal fall, after fruit set and during sizing. Also, after harvest but before leaf senescence. Water rate: 15 gallons per acre minimum.
Read more about YaraVita® POWERBOR™ Ca