Nutrients

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

Strawberries - 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.

Strawberries - 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. On the youngest leaves the chlorosis looks more uniform as the small veins are only slightly darker than the adjacent tissue.

Reasons
Manganese deficiency (right). Symptoms can be confused with magnesium deficiency, but in this case interveinal chlorosis starts on old leaves. Interveinal chlorosis due to zinc deficiency looks similar, too, but is accompanied by reddish leaf discoloration.

Strawberries - 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. On the youngest leaves the chlorosis looks more uniform as the small veins are only slightly darker than the adjacent tissue.

Reasons
Manganese deficiency (right). Symptoms can be confused with magnesium deficiency, but in this case interveinal chlorosis starts on old leaves. Interveinal chlorosis due to zinc deficiency looks similar, too, but is accompanied by reddish leaf discoloration.

Strawberries - 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. On the youngest leaves the chlorosis looks more uniform as the small veins are only slightly darker than the adjacent tissue. Plant growth is stunted and fruits remain small.

Reasons
Manganese deficiency (right). Symptoms can be confused with magnesium deficiency, but in this case interveinal chlorosis starts on old leaves. Interveinal chlorosis due to zinc deficiency looks similar, too, but is accompanied by reddish leaf discoloration.

Strawberries - Discolouration

Symptoms
Roots show a dull, dark brown discoloration. Their growth is poor.

Reasons
Manganese deficiency on roots (right)

Strawberries - 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 is diffusely tinted bronze to orange.

Reasons
Manganese deficiency (left) compared to zinc deficiency (right).

Strawberries - 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. On the youngest leaves the chlorosis looks more uniform as the small veins are only slightly darker than the adjacent tissue. Plant growth is stunted and fruits remain small.

Reasons
Manganese deficiency. Symptoms can be confused with magnesium deficiency, but in this case interveinal chlorosis starts on old leaves. Interveinal chlorosis due to zinc deficiency looks similar, too, but is accompanied by reddish leaf discoloration.

Manganese and zinc deficiency made worse by

  • Organic soils
  • Sandy soils
  • High pH
  • Cold wet periods
  • Fluffy soils

Manganese is important for

  • Stronger plants
  • Healthier plants
  • Gives plants more resistance to cold weather

Yara recommended fertilizers for Manganese

NUTRA-SPRAY MANZINC

NUTRA-SPRAY MANZINC

Strawberry (field grown): Apply 2-5 lbs in spring before flowering. Apply aerial applications in at least 5 gallons/acre and ground applications in at least 10 gallons/acre; however, when total application gallonage is 25 gallons per acre or less. DO NOT mix more than 1 lb. of this product per gallon of water.

Read more about NUTRA-SPRAY MANZINC