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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 19, Number 1 (1968) → Sulfur Deficiency in Nursery Seedlings May be Caused by Concentrated Fertilizers

Sulfur Deficiency in Nursery Seedlings May be Caused by Concentrated Fertilizers

During the 1960 season several areas of chlorotic pine seedlings developed throughout the Auburn nursery. Some areas appeared to be the usual elusive "summer chlorosis," with seedlings yellow or almost white toward the top but not stunted. Other chlorotic areas seemed to be "sawdust-burned" or nitrogendeficient from excessive raw sawdust applications, with seedlings stunted and dark yellow. A series of plots was located within areas of both types of chlorosis to determine the remedial effectiveness of ammonium sulfate, potassium chloride, and ammonium nitrate. None of these compounds had any effect on the summer chlorosis. The only plots that showed any response were those in the supposedly nitrogen-deficient areas which received ammonium sulfate. These plots turned a normal shade of green and began height growth.


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Author(s): E.S. Lyle, Jr., N. D. Pearce

Publication: Tree Planters' Notes - Volume 19, Number 1 (1968)

Volume: 19

Number: 1