Symptoms
Leaves are rather elongated in shape and bent down. Their color is pale with broad white leaf veins.
Plant habitus is loose, headforming inhibited.
Reasons
Copper deficiency
Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.
Cabbage - Deformation
Symptoms
Leaves are rather elongated in shape and bent down. Their color is pale with broad white leaf veins.
Plant habitus is loose, headforming inhibited.
Reasons
Copper deficiency
Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.
Cabbage - Growth retardation
Symptoms
Stunted growth caused by Cu deficiency.
Reasons
Copper deficiency (right)
Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.
Cabbage - Deformation
Symptoms
Leaves are rather elongated in shape and bent down. Their color is pale with broad white leaf veins.
Plant habitus is loose, headforming inhibited.
Reasons
Copper deficiency (right)
Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.
Copper deficiency made worse by
Organic soils
Chalky soils
Sandy soils
Reclaimed heathland
High nitrogen applications
Copper is important for
Lignin formation, chlorophyll performance and regulation of superoxide radicals
Necessary for blue pigment plastocyanin, seen in broccoli florets
Yara recommended fertilizers for Copper
YaraVita COPTREL 500
YaraVita COPTREL 500
Cabbage: 0.5 l/ha applied at the 4 to 6 leaf stage. For moderate to severe deficiency, one or two repeat applications should be made at 10 to 14 day intervals. Water rate: 200 l/ha.