Author： Sarigumba T. I.
Publisher： Society of American Foresters
ISSN： 0148-4419
Source： Southern Journal of Applied Forestry, Vol.2, Iss.2, 1978-05, pp. : 38-41
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Abstract
Two series of uniform fertilization trials were installed in newly established plantations on Georgia coastal plain soils. In one series, four levels of phosphorus (P) were applied as granular triple superphosphate (TSP) on a circular area around each tree. In the other series, three levels each of nitrogen (N) and P as ammonium nitrate (NH4NO3) and TSP, respectively, were applied in factorial combinations on a four-foot band along each tree row. N application was ineffective when little or no P was added. At a high P rate, however, N and P produced better growth response than P alone.¹
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