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Showing items 1 through 9 of 150.
  1. Library Resource
    Journal Articles & Books
    December, 1999
    Peru, United States of America

    Uncaria tomentosa and U. guíanensis have been important in traditional healing in many South American countries. These species contain some sixty active substances which are widely tested for possible medical treatments. U. tomentosa has been traded from Peru until it reached a peak export of 726 tonnes in 1996. Government agencies and private companies have dedicated considerable efforts in trying to enhance production and sales of these species.

  2. Library Resource
    Journal Articles & Books
    December, 1999
    Brazil, Central America, South America

    Intensive farming and grazing on Oxisols of the Brazilian savannas (also known as the Cerrados) are leading to loss of soil organic matter (SOM) and consequently to a decline in fertility and sustainability of the soils. Alternative land-use systems such as the introduction of legumes in pastures and the use of no-tillage systems can reverse this process.

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