Evaluation of Sludge Compost as Growing Medium for Sea Oats

Defense Date

1986

Document Type

Capstone

Degree Name

M.S. Coastal Zone Management

First Advisor

George Fitzpatrick

Second Advisor

Richard E. Dodge

Third Advisor

Curtis Burney

Abstract

Plant growth for sea oats (Unlola paniculata, L.) grown in screened and unscreened sewage sludge compost was assessed by comparing plants grown in these 2 materials, and combined with beach sand, with plants grown in 2 commercially available potting mixes which were used as standards. Fifteen individuals each of U. paniculata were grown for 4 months in 25 cm. diameter containers in respective mixtures of screened compost to beach sand of 1:0, 3:1, 1:1, 1:3, (v:v) and unscreened compost in the same ratios for a total of 10 different potting mix combinations, including the 2 standards. Growth was evaluated by means of size index in which plant height and spread were summed. At the end of the growing period 3 potting mixes: Metromix 300R, a 3:1 beach sand:screened compost (v:v) exhibited significantly faster growth and culm production than the other 7 mixes.

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