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Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2008 by Universidad Católica de Valparaíso -- Chile
Vol. 11 No. 5, Special Issue of December 15, 2008
 


Figure 1. South America’s herbicide consumption from 1990 to 2001. Food and Agriculture Organization of the United Nations, 2006. Statistical database, FAO, Rome, Italy.


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