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Sudangrass Recommended To Combat Canada ThistleUrbana-Champaign IL (SPX) May 11, 2010 Farmers who don't rely on or want to minimize the use of chemical herbicides need creative solutions to win the battle against aggressive perennial weeds. In ongoing research at the University of Illinois on Canada thistle, Sudangrass is proving to be a worthy contender as a summer smother crop. "Sudangrass get very tall. It outcompetes the thistle for light. The Sudangrass creates shade so photosynthesis cannot occur in the thistle," said U of I weed scientist John Masiunas. "In our test plots, p ... read more |
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Paris, France (ESA) May 05, 2010The small but powerful camera of ESA's Proba-V mission can fit on a single laboratory table for testing. But when it reaches orbit, this compact sensor will deliver a daily overview of virtually all vegetation growth across Earth. Daily global monitoring is an ambitious enough goal for a full-sized mission, but Proba is ESA's smallest satellite platform - smaller than a cubic metre. ... more  
Biloxi, Mississippi (AFP) May 3, 2010Violent thunderstorms unleashed tornados and flash floods over the southern United States over the weekend killing at least 22 people and forcing the Kentucky governor to declare a state of emergency. Governor Steve Beshear said Monday four people died in weather-related accidents in his state and requested federal assistance to deal with storm damage. "I urge individuals who encounter h ... more 
New Orleans, Louisiana (AFP) May 4, 2010Widespread flooding in the southern US state of Tennessee caused by torrential rains has killed at least 18 people, emergency officials said Tuesday, as thousands sought shelter from muddy river waters. Coupled with heavy storms and deadly tornados, severe weather has now killed a total of 29 people in the states of Tennessee and Mississippi over the last week - storms which President Barac ... more |
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Large Amounts Of Nitrogen Stored Beneath Selected Agricultural AreasMadison WI (SPX) May 05, 2010 Large amounts of nitrogen are stored in the soils of agricultural areas in Nebraska and Maryland, according to a new study by the U.S. Geological Survey (USGS) and the U.S. Department of Agriculture (USDA). Once in the soil, nitrogen can be converted to nitrate, which can readily move to groundwater. "We expected to find nitrogen stored in organic matter in these soils, but didn't realize how much," said Tom Nolan, USGS hydrologist, who led the study. "If mobilized, the large reservoirs of nitroge ... read more |
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