Phosphorus deficiency in Barley

อาการ
Plants are stunted and show purple tints on their dark green leaves, veins and stems. The older leaves, affected first, often senesce prematurely.

เหตุผล
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.

อาการ
Plants are stunted and show purple tints on their stems.

เหตุผล
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.

อาการ
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.

เหตุผล
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.

อาการ
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.

เหตุผล
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.

อาการ
Ear size is severely stunted.

เหตุผล
Phosphorus deficiency (right)

อาการ
Growth of deficient plants is severely stunted. Leaf color is a slightly paler than normal.

เหตุผล
Phosphorus deficiency in different levels (left) compared to healthy plant