Nutrients

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

Cabbage - Deformation

Symptoms
Older Leaves show a light brown and withered necrotic border zone. With ongoing deficiency necrosis progresses from the edge to the middle. Leaf margins are cupped upwards.

Reasons
Potassium deficiency

Cabbage - Deformation

Symptoms
Older Leaves show a light brown and withered necrotic border zone. With ongoing deficiency necrosis progresses from the edge to the middle. Leaf margins are cupped upwards.

Reasons
Potassium deficiency

Cabbage - Deformation

Symptoms
Older Leaves show brown, withered and brittle necrotic border zones. With ongoing deficiency necrosis progresses from the edge to the middle. Leaf margins are cupped upwards.

Reasons
Potassium deficiency

Cabbage - Deformation

Symptoms
Older leaves show brown, withered and brittle necrotic border zones. With ongoing deficiency necrosis progresses from the edge to the middle. Leaf margins are cupped upwards.

Reasons
Potassium deficiency

Cabbage - Deformation

Symptoms
Older leaves show yellow to brown, withered and brittle necrotic border zones. With ongoing deficiency necrosis progresses from the edge to the middle. Leaf margins are cupped upwards.

Reasons
Potassium deficiency

Cabbage - Deformation

Symptoms
Older Leaves show a brown and withered necrotic border zone. With ongoing deficiency necrosis progresses from the edge to the middle. Leaf margins are cupped upwards.

Reasons
Potassium deficiency (right)

Cabbage - Deformation

Symptoms
Older Leaves show a brown and withered necrotic border zone. With ongoing deficiency necrosis progresses from the edge to the middle. Leaf margins are cupped upwards. Plant growth is severely affected.

Reasons
Potassium deficiency (right)

Potassium deficiency made worse by

  • Acidic soils (low pH)
  • Sandy or light soils (leaching)
  • Drought conditions
  • High rainfall (leaching)
  • or heavy irrigation
  • Heavy clay (illite) soils
  • Soils with low K reserves
  • Magnesium rich soils

Potassium is important for

  • Resistance to cold injury and drought
  • High yields through increased biomass and head weight
  • Consistent, early and evenly matured marketable crop

Yara recommended fertilizers for Potassium

YaraVita FOLIAR POTASH

YaraVita FOLIAR POTASH

Cabbage: 5 l/ha at the 4 to 6 leaf stage. Repeat as required for moderate to severe deficiency at 7 to 14 day intervals. Water rate: 200 l/ha.

Read more about YaraVita FOLIAR POTASH

Other recommended products

YaraVita CROPLIFT PRO
Cabbage: 2.5 to 5 kg/ha. Repeat at 10 to 14 day intervals as necessary. Water rate: 200 l/ha.
YaraVita MAGPHOS K
Cabbage: 4 l/ha applied soon after transplanting. Water rate: 200 l/ha.