Effect of Nitrogen, Phosphorus and Potassium Additions on Plant Biomass and Soil Nutrient Content of a Swale Barrier Strand Community in Louisiana

Fertilization of a swale plant community with various levels and combinations of nitrogen, phosphorus and potassium resulted in increased plant growth. Nitrogen addition produced the greatest increase in biomass. At some high nitrogen levels, phosphorus limited plant production. Potassium fertilizat...

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Bibliographic Details
Published in:Annals of botany 1990-09, Vol.66 (3), p.265-271
Main Authors: DOUGHERTY, K. M., MENDELSSOHN, I. A., MONTEFERRANTE, F. J.
Format: Article
Language:English
Subjects:
Calcium
Dune soils
Dunes
Fertilization
Fertilizer effects
Nitrogen
nitrogen limitation
Phosphorus
Potassium
Soil ecology
Soil nutrients
Spartina patens
swale Scirpus americanus
Swales
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Summary:Fertilization of a swale plant community with various levels and combinations of nitrogen, phosphorus and potassium resulted in increased plant growth. Nitrogen addition produced the greatest increase in biomass. At some high nitrogen levels, phosphorus limited plant production. Potassium fertilization did not influence plant growth. Phosphorus fertilization decreased the levels of soil calcium, magnesium and manganese. A shore-perpendicular gradient in apparent saltwater inundation influenced soil pH and the concentrations of iron, phosphorus, and magnesium.
ISSN:0305-7364
1095-8290
DOI:10.1093/oxfordjournals.aob.a088024