Researchers use pigs to root out problem weeds

27 julio 2015

Back before chemical pesticides and herbicides, farmers had to come up with ways to kill the weeds that took over their fields. One method used “back in the day” was letting pigs loose in fields that were not being used for crops for a season and allowing the pigs to do what they do naturally: dig up the roots of weeds and fertilize the land.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/m9FlVk3_zT4″ height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m9FlVk3_zT4/150727120542.htm

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