Fruits
Vegetables
Commodities
Symptoms
Plants are stunted and show purple tints on their dark green leaves, veins and stems. The older leaves, affected first, often senesce prematurely.
Reasons
Phosphorus deficiency
Spring cereals may show reddening/purpling of older leaves in cold weather. Root and stem damage or poor soil consolidation can cause similar symptoms, too.
Symptoms
Plants are stunted and show purple tints on their stems.
Reasons
Phosphorus deficiency on young plants
Spring cereals may show reddening/purpling of older leaves in cold weather. Root and stem damage or poor soil consolidation can cause similar symptoms, too.
Symptoms
Plants with P deficiency are smaller than normal and show purple tints on their dark green leaves, especially on the middle of the leaf blade.
K deficient leaves are even more stunted and their tips are scorched.
Reasons
P and K deficiency vs. optimum supply
Spring cereals may show reddening/purpling of older leaves in cold weather. Root and stem damage or poor soil consolidation can cause similar symptoms, too.
Symptoms
Plants are stunted and show purple tints, especially on the middle of older leaves. Leaf veins and stems are concerned, too. Leaf size is dimished.
Reasons
Phosphorus deficiency
Spring cereals may show reddening/purpling of older leaves in cold weather. Root and stem damage or poor soil consolidation can cause similar symptoms, too.
Symptoms
Ear size is severely stunted.
Reasons
Phosphorus deficiency (right)
Symptoms
Growth of deficient plants is severely stunted. Leaf color is a slightly paler than normal.
Reasons
Phosphorus deficiency in different levels (left) compared to healthy plant
Asia and Oceania
