Keyword: grasses

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  • Ancient maize followed two paths into the Southwest

    01/11/2015 6:11:38 PM PST · by SunkenCiv · 28 replies
    Eurekalert! ^ | January 8, 2014 | University of California - Davis
    The study, based on DNA analysis of corn cobs dating back over 4,000 years, provides the most comprehensive tracking to date of the origin and evolution of maize in the Southwest and settles a long debate over whether maize moved via an upland or coastal route into the U.S. Study findings, which also show how climatic and cultural impacts influenced the genetic makeup of maize, will be reported Jan. 8 in the journal Nature Plants. The study compared DNA from archaeological samples from the U.S. Southwest to that from traditional maize varieties in Mexico, looking for genetic similarities that would...
  • U.S. must 'hustle' to reach 36 billion gallons of biofuels by 2022, ag secretary says

    03/12/2012 6:34:49 PM PDT · by Oldeconomybuyer · 44 replies
    Kansas City Star ^ | March12, 2012 | by Cory Nealon
    The United States can meet President Barack Obama's goal of producing 36 billion gallons of biofuels by 2022, but it better get moving. That's according to Tom Vilsack, secretary of the U.S. Department of Agriculture. According to a 2010 Agriculture Department report, the agency plans for the U.S. to produce 13.4 billion gallons of biofuels from grasses and sugars. The rest would come from oil seeds, crop residues and wood waste. The EPA is exploring other sources, such as animal fats, municipal solid waste and algae. The push for more biofuels comes as other industries, such as commercial power companies,...
  • 'Green' Lawns Spur Neighborhood Wars

    07/13/2007 8:48:32 PM PDT · by Lorianne · 42 replies · 1,093+ views
    Wall Street Journal ^ | secret apparently | Gwendolyn Bounds
    Finally the grass is greener on my side of the fence. I've spent the past year converting my lawn to organic care. After some early setbacks, my lawn looks pretty great, and the only herbicide I've used is an all-natural corn substance that's safe enough for my dog to eat. The same scene is playing out in yards around the country -- but it's not a peaceful transition. As the organic lawn movement grows, so are tensions in some communities. The latest front is over whether lawn-care methods are the horticultural equivalent of secondhand smoke: a choice that affects the...