Búsqueda de LIBROS DEL AUTOR: e o gangstad

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  • WEED CONTROL METHODS FOR RIVER BASIN MANAGEMENT
    ebook
    WEED CONTROL METHODS FOR RIVER BASIN MANAGEMENT
    E.O. GANGSTAD
    Aquatic plants continue to create problems associated with navigation, flood control, agriculture, irrigation and drainage, values of lands, conservation of wildlife and fisheries, and water resource supply. While much research is being done to find more effective and economic control measures, there is now a great need to apply known facts to achieve a measure of control by th...

    $5,300.00

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  • WEED CONTROL METHODS FOR PUBLIC HEALTH APPLICATIONS
    ebook
    WEED CONTROL METHODS FOR PUBLIC HEALTH APPLICATIONS
    E.O. GANGSTAD
    This volume includes measures of control of aquatic vegetation that harms human health, since water-related diseases exist in this environment. Although malaria has receded internationally due to the combined chemotherapeutic-insecticidal programs, recently it has resisted both medicines and insecticide control. Active malaria cases in the U.S. were fewer than a dozen before th...

    $6,100.00

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