Copper
Copper Deficencies

Barley



Spiralling young leaves (flag leaf in particular) an important diagnostic feature. Shrivelling of leaf tips. Copper deficiency frequently occurs following nitrogen application, reclamation of heathland, on peaty and sandy soils and thin organic soils over chalk
Wheat


Oats



Copper Toxicity
Maize

Oats

Peas

Potatoes

Rape(with Iron deficency also)

Barley (also with Iron defiency)


