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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 18, Number 1 (1967) → Effects of Water Level and Fertilizer Combinations on Loblolly and Slash Pine Seedlings

Effects of Water Level and Fertilizer Combinations on Loblolly and Slash Pine Seedlings

This study reports interacting influences of three fertilization levels and four controlled water regimes for loblolly pine (Pinus taeda) and slash pine (P. elliottii) in the Southeastern tidewater zone. If water was ponded on the surface, seedlings had poorer survival when fertilized than when not fertilized; each fertilizer application increased mortality. This was the only effect of fertilization on survival. Height growth was stimulated through the second growing season by nutritional supplements under all water conditions, except for loblolly pine permanently inundated to 4 inches. Needle lengths and foliar nitrogen, phosphorus, and potassium increased with drainage and fertilization, particularly early in the season. In England, Prof. E. R. C. Reynolds found that fertilization partially alleviated the detrimental effects of waterlogging. It was decided that the plastic Bladen clay loam soils of the coastal areas should be rained to depths of 4 inches, and that, for significantly proved growth during the first 2 years of plantation establishment, 1,000 pounds per acre of 8-8-8 plus 100 pounds per acre of a trace element mixture must be applied.


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Author(s): Laurence C. Walker

Publication: Tree Planters' Notes - Volume 18, Number 1 (1967)

Volume: 18

Number: 1