Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulfur
B Boron
Cu Copper
Fe Iron
Mn Manganese
Zn Zinc

Strawberries - Chlorosis

Symptoms
Leaf margins are chlorotic and then scorched. This spreads to the intercostal areas. The leaf becomes bright yellow with necrotic tints. The basal part of the leaf blade remains light green at the last. Mature leaves are affected first. Symptoms worsen with increased deficiency and leaf age.

Reasons
Magnesium deficiency Deficient leaf blades contain less than 0.1% magnesium on dry basis. Potassium deficiency can cause similar symptoms. Leaves with salt burn show similar symptoms.

Strawberries - Chlorosis

Symptoms
Leaf margins are chlorotic and then scorched. This spreads to the intercostal areas. The leaf becomes bright yellow with necrotic tints. The basal part of the leaf blade remains light green at the last. Mature leaves are affected first. Symptoms worsen with increased deficiency and leaf age. The young central leafs remain green.

Reasons
Magnesium deficiency Deficient leaf blades contain less than 0.1% magnesium on dry basis. Potassium deficiency can cause similar symptoms. Leaves with salt burn show similar symptoms.

Strawberries - Necrosis

Symptoms
Leaf margins are chlorotic and then scorched. This spreads to the intercostal areas. The leaf becomes bright yellow with necrotic tints. The basal part of the leaf blade remains light green at the last. Mature leaves are affected first. Symptoms worsen with increased deficiency and leaf age. The young central leaves remain green.

Reasons
Magnesium deficiency Deficient leaf blades contain less than 0.1% magnesium on dry basis. Potassium deficiency can cause similar symptoms. Leaves with salt burn show similar symptoms.

Strawberries - Chlorosis

Symptoms
Leaves show interveinal chlorosis with spotty necrosis on their margins and dark discolourations between the veins. Mature leaves are affected first. Symptoms worsen with increased deficiency and leaf age. Finally the oldest leaves turn completely brown while the young central leaves remain green.

Reasons
Magnesium Deficiency. Potassium deficiency can cause similar symptoms, but normally the basal part of the leaf is affected too. Leaves with salt burn show similar symptoms.

Strawberries - Chlorosis

Symptoms
Leaves show interveinal chlorosis with spotty necrosis on their margins and dark discolourations between the veins. Mature leaves are affected first. Symptoms worsen with increased deficiency and leaf age. Finally the oldest leaves turn completely brown while the young central leaves remain green.

Reasons
Magnesium Deficiency. Potassium deficiency can cause similar symptoms, but normally the basal part of the leaf is affected too. Leaves with salt burn show similar symptoms.

Magnesium deficiency made worse by

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

Magnesium is important for

  • Improved photosynthesis
  • Green healthy foliage
  • Reduced yellowing on older leaves

Yara recommended fertilizers for Magnesium

YaraVita MAGFLO 300

YaraVita MAGFLO 300

Strawberry (field grown): 2 applications of 3 l/ha commencing when sufficient leaf area to intercept spray. Water rate: 200-500 l/ha.

Read more about YaraVita MAGFLO 300

Other recommended products

YaraVita MAGPHOS K
Strawberry (Field Grown): Non-everbearing varieties: 5 lha from two weeks after transplanting / start of new season leaf growth. Repeat at 7 to 10 day intervals as required. Also, 3 applications of 5 l/ha from start of flowering. Repeat applications at 7 to 10 day intervals. Everbearing varieties: 6 applications of 5 l/ha. Do not apply successive applications at less than 10 to 14 day intervals. Water rate: 300 to 600 l/ha.
YaraTera KRISTA MAG
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YaraTera KRISTA MgS
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