Deficiency Symptoms ABC

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Phosphorus deficiency (P)

Older leaves will show brown discoloration along their edges, frequently accompanied by deformation. Leaf blades, originally bright green, will turn yellow, followed by purplish-red discoloration of leaf veins.

Treatment: Soil analysis will help to determine whether an application of phosphorous is advisable. If the analysis shows a generally low phosphorous content of the soil it is advisable to apply phosphorous annually.

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K+S Minerals and Agriculture worldwide