In the battle against weeds, tillage is one of the strongest weapons at the disposal of organic or ecologically based farmers. But, depending on when it is used, tillage can also be a strong driver of nitrogen losses that contribute to groundwater pollution, according to researchers.
http://www.sciencedaily.com/releases/2015/10/151001094815.htm
Tillage timing influences nitrogen availability, loss on organic farms
1 octubre 2015
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