Nitrogen deficiency-Potatoes

Symptoms
Plants (right) are stunted and leaves show a uniform chlorotic pale green / yellow colouration

Reasons
Nitrogen deficiency Sulphur deficiency, root parasites (eg PCN), deep drilling of tubers, nightfrosts, water shortage or heavy metal toxicity can cause similar symptoms.

Symptoms
Leaves (right) are stunted and leaves show a uniform chlorotic pale green/yellow colouration

Reasons
Nitrogen deficiency Sulphur deficiency, root parasites (eg PCN), deep drilling of tubers, nightfrosts, water shortage or heavy metal toxicity can cause similar symptoms.

Symptoms
Plants on the left side show uniform pale green leaves and stunted growth. Older leaves usually affected first and these then turn yellow and shed early.

Reasons
Nitrogen deficiency. Sulphur deficiency, root parasites (eg PCN), deep drilling of tubers, nightfrosts, water shortage or heavy metal toxicity can cause similar symptoms. Often seen as patches due to poor fertiliser application or soil type