- K deficiency symptoms are narrow leaves and short, red dots appear, dark green leaves, brown leaf edges slightly yellow, leaves wilt and dry easily. Rice shortage K poor growth, early flowering, early ripening, many floaters mezzanine, top edge toward the yellowing leaves. When the ratio of potassium in the trees reduced to 1 / 2-1 / 3 compared to normal, then see potassium deficiency symptoms appear on the leaves, so when symptoms appear, the yield fell to the potassium fertilizer that time can not compensate for the shortfall.
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