Magnesium deficiency made worse by

  • Sandy soils
  • Acidic soils
  • Potassium rich soils
  • Soils receiving high potash applications
  • Cold wet periods

Magnesium is important for

  • Combats chlorosis giving healthier greener foliage
  • Increases alcohol content in berries
  • Increases sugar levels in berries
  • Prevents and controls grape stem necrosis

Yara recommended fertilizers for Magnesium

YaraTera KRISTA MgS

YaraTera KRISTA MgS

Grapevines: Apply 100-160 kg/ha in multiple applications from growth stage; early shoot growth to verasion. Refer to Yara crop program @ www.yara.com.au as a guide or contact your local Yara sales agronomist for advice.

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YaraVita MAGTRAC

YaraVita MAGTRAC

Grapevines: Where magnesium levels are low to marginal apply 3 L/ha at flower truss visible, flower buds separated, and at fruit set. For grape stalk necrosis (grape shrivel) apply 3 applications of 4 to 5 L/ha commencing at pea-sized berries and again at veraison and 1 month before harvest. Note: For table grapes, applications should be completed 1 month before harvest. Water rate: 500-1000 L/ha.

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Mg-SUL

Mg-SUL

Grapevines: Apply 100-200 l/ha in multiple applications from growth stage; early shoot growth to verasion. Refer to Yara crop program as a guide or contact your local Yara sales agronomist for advice.

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