http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (AP) -- White radishes are taking root on Tony Luthman's farm, the start of what he hopes will create a welcome mat for the corn he plants in the spring. http://www.physorg.com/news172474657.html Space & Earth Fri, 18 Sep 2009 07:30:01 EST news172474657 Orchard floor and groundcover management is important to fruit growers, affecting the efficiency of orchard operations, fruit tree performance, and soil quality. http://www.physorg.com/news154968453.html Biology Fri, 27 Feb 2009 14:47:57 EST news154968453 Combating soil erosion is a primary concern for agricultural producers in the United States, and many have incorporated conservation tillage systems in their effort to maintain a profitable crop output. http://www.physorg.com/news142076526.html Space & Earth Wed, 01 Oct 2008 10:42:06 EST news142076526