Búsqueda de LIBROS DEL AUTOR: uphoff norman

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  • BIOLOGICAL APPROACHES TO REGENERATIVE SOIL SYSTEMS
    ebook
    BIOLOGICAL APPROACHES TO REGENERATIVE SOIL SYSTEMS
    UPHOFF, NORMAN
    Agriculture in the 21st century will need considerable modification to remain both productive and sustainable. Greater production is needed to meet the needs of our still-growing populations and to combat hunger and poverty. Declines in soil health and the pollution of water sources are making many of our production systems less tenable. These adverse trends are exacerbated mor...

    $1,480.00

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  • IMPROVING INTERNATIONAL IRRIGATION MANAGEMENT WITH FARMER PARTICIPATION
    ebook
    IMPROVING INTERNATIONAL IRRIGATION MANAGEMENT WITH FARMER PARTICIPATION
    NORMAN UPHOFF
    Traditionally, indigenous irrigation in many countries of Asia, Africa, and Latin America has been managed quite well by water users, who design, build, operate, and maintain often sophisticated, but usually small-scale, systems. More recently, in connection with large-scale development programs and government-managed schemes, the planned introduct ...

    $1,200.00

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