16/03/2009

Historical increase in corn yield -- it's in the roots

One of the most significant developments in agricultural growth in modern times has been the continuous and substantial increase in corn yield over the past 80 years in the U.S. Corn Belt.

Tree species composition influences nitrogen loss from forests

Throughout the world, nitrogen compounds are released to the atmosphere from agricultural activities and combustion of fossil fuels. These pollutants are deposited to ecosystems as precipitation, gases, and particles, sometimes ...

UAB space freezers deemed a success

The newest generation of compact research freezers is performing well in space and have already boosted the scientific capacity of the International Space Station (ISS), said engineers at the University of Alabama at Birmingham ...

Spreading high-speed Internet to rural areas

To cut the cost of bringing high-speed Internet to rural areas, Dr. Ka Lun Lee and colleagues at the University of Melbourne and NEC Australia in the state of Victoria are experimenting with a way to boost the reach of existing ...

No consistent advantage for planting soybean early

Planting soybean on the optimum date produces maximum yield and profit without increasing production costs. Unfortunately, the optimum planting date is hard to indentify, because it varies from year to year, depending on ...

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