Nutrients

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

Strawberry - Chlorosis

Symptoms
Manganese deficiency causes yellow-green intercostal chlorosis on young and medium old leaves. Green veins give the leaf surface a netlike appearance. Zinc undersupply causes chlorosis on both younger and older leaves. Veins and the serrated leaf margins remain green.

Reasons
Manganese and zinc deficiency Deficiencies of both micronutrients occur often in some regions, occasionally even at the same time. They are hard to distinguish without further testing. Iron deficiency can be a reason for chlorosis on the youngest leaves, while magnesium undersupply causes chloroses on older leaves.

Strawberry - Chlorosis

Symptoms
With Zinc undersupply the leaves show interveinal or uniform chlorosis. The marginal area of older leaves is often diffusely tinted bronze to orange.

Reasons
Zinc deficiency Manganese deficient leaves develop a similar chlorosis, but leaf veins are more highlightened and margins do not show a reddish discoloration. Chloroses due to magnesium undersupply occur on older leaves first.

Strawberry - Chlorosis

Symptoms
With Zinc undersupply the leaves show interveinal or uniform chlorosis. The marginal area of older leaves is often diffusely tinted bronze to orange.

Reasons
Zinc deficiency Manganese deficient leaves develop a similar chlorosis, but leaf veins are more highlightened and margins do not show a reddish discoloration. Chloroses due to magnesium undersupply occur on older leaves first.

Strawberry - Chlorosis

Symptoms
With Zinc undersupply the leaves show interveinal or uniform chlorosis. The marginal area of older leaves is often diffusely tinted bronze to orange. Stunted growth with small flowers and fruits.

Reasons
Zinc deficiency Manganese deficient leaves develop a similar chlorosis, but leaf veins are more highlightened and margins do not show a reddish discoloration. Chloroses due to magnesium undersupply occur on older leaves first.

Strawberry - Chlorosis

Symptoms
With Zinc undersupply the leaves show interveinal or uniform chlorosis. The marginal area of older leaves is often diffusely tinted bronze to orange. Stunted growth with small flowers and fruits. Root growth is not affected.

Reasons
Zinc deficiency (right) Manganese deficient leaves develop a similar chlorosis, but leaf veins are more highlightened and margins do not show a reddish discoloration. Chloroses due to magnesium undersupply occur on older leaves first.

Strawberry - Size reduced

Symptoms
With Zinc undersupply the leaves show interveinal or uniform chlorosis. The marginal area of older leaves is often diffusely tinted bronze to orange. Stunted growth with small flowers and fruits. Root growth is not affected.

Reasons
Zinc deficiency (right)

Strawberry - Chlorosis

Symptoms
Manganese deficiency causes yellow-green intercostal chlorosis on leaves. Especially the medium aged, large leaves show distinct dark green veins and leaf margins. With Zinc undersupply the leaves also show interveinal chlorosis, but the veins are less highlighted. The marginal area of older leaves is often diffusely tinted bronze to orange.

Reasons
Zinc deficiency (right) compared to manganese deficiency (left)

Manganese and zinc deficiency made worse by

  • Organic soils
  • High pH soils
  • Soils rich in phosphorus
  • Soils receiving high phosphorus application
  • Cold wet conditions

Zinc is important for

  • Improved crop development
  • Increased yield
  • Improved fruit quality

Yara recommended fertilizers for Zinc

YaraVita ZINTRAC 700

YaraVita ZINTRAC 700

Strawberry (field grown): One application of 0.5 l/ha at green bud followed by two applications of 0.25 l/ha applied at white bud and post-harvest regrowth. Water rate: 200 to 500 l/ha.

Read more about YaraVita ZINTRAC 700

Other recommended products

YaraTera KRISTALON BLUE LB
Strawberries (fertigated): Crop specific recipes for 2 tank (A & B tank) systems can be produced using the Yara Fertigation Plan, for more details contact your local Yara area manager.
YaraTera KRISTALON GREEN LB
Strawberry (fertigated): Crop specific recipes for 2 tank (A & B tank) systems can be produced for protected crops using the Yara Fertigation Plan, for more details contact your local Yara area manager.
YaraTera KRISTALON RED
Strawberries (fertigated): Crop specific recipes for 2 tank (A & B tank) systems can be produced using the Yara Fertigation Plan, for more details contact your local Yara area manager.