777 resultados para Communicable Disease Center (U.S.)


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"March 1980."

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Experimental plantings to stabilize eroding shorelines in Bogue Sound in 1974 were successful. Better stands were produced on sites subject to severe wave stress by reducing transplant spacing to 1.5 to 2 feet apart. Rhizomes without well-developed culms attached were worthless as propagules within the intertidal zone. Seeding was unsuccessful due to exposure to excessive wave energy.

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At head of title: "Dredging Research Program."

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At head of title: "Dredging Research Program."

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"June 1984"--Pt. 2.

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"July 1977."

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Issued July 1977.

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Issued August 1977.

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"September 1977."

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"March 1980."

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"July 1980."

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"April 1980."

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"March 1981."