Juan P. Alvez | Pasture Technical Coordinator, Center for Sustainable Agriculture – UVM Extension Since the onset of agriculture, successful farming has meant the extraction of minerals from soil as plants grow. A relatively small world population and a vast agricultural frontier made this seem a problem of minor consideration and until relatively recently, Planet […]

This entry was posted on Thursday, October 2nd, 2014 at 9:19 pm and is filed under Uncategorized.