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Nitrogen (N) deficiency
Eric Hanson, Horticulture

Nitrogen shortages are common in blueberries. Symptoms include reduced shoot growth, fewer new canes, and pale green (chlorotic) leaves. Chlorosis is uniform across leaves with no mottling or pattern. Leaves of deficient plants often develop fall colors and drop off early. Yield is usually reduced.
At left, Bluecrop with normal N and right, Bluecrop with low N.  
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Last Updated - 9/27/09