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Absence or insufficiency of
potassium needed for normal growth and development. |
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| Deficiency symptoms of potassium are
exhibited in the older leaves of the plant first. A browning (dead
tissue) occurs along the leaf margins. As symptoms become more
severe, the browning progresses into the tissue between the leaf
veins, and to younger leaves. Potassium deficiency can also be
expressed in irregular brown spots throughout the leaves. Potassium
deficiency also causes a reduction in plant growth. |
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