Nufd153 - Study guides, Class notes & Summaries

Most of the world phosphate rock reserves are concentrated in what small area? North Africa In the US, what percentage of antibiotics are used to speed growth in livestock? 80% In the United States, agriculture accounts for approximately what percent of pesticide use? 80 This component of fertilizer makes up 60 percent of the synthetic fertilizer used in the United States. Nitrogen In 2013, about half of all farmers faced "superweeds" which were resistant to what? Glyphosat

During the 1960's and 1970's the grain output in which country increased dramatically due to industrial growth? India In 2013, about half of all farmers faced "superweeds" which were resistant to what? Glyphosate In the US, what percentage of antibiotics are used to speed growth in livestock? 80% Most of the world phosphate rock reserves are concentrated in what small area? North Afric