News tagged with agricultural fields

Wood chips help curb nitrate leaching

(PhysOrg.com) -- Wood chips can significantly stem nitrate flow from crop fields into the surrounding watershed, according to a U.S. Department of Agriculture (USDA) study.

Feb 20, 2012
5 / 5 (1) 0

Solutions for a nitrogen-soaked world

Nitrogen is both an essential nutrient and a pollutant, a byproduct of fossil fuel combustion and a fertilizer that feeds billions, a benefit and a hazard, depending on form, location, and quantity. Agriculture, industry ...

Jan 17, 2012
4 / 5 (2) 0

Using ground covers in organic production

Studies by U.S. Department of Agriculture (USDA) scientists indicate that organic farmers who need to periodically amend their soils with compost after planting can still control weeds -- and hold down costs -- by using fabric ...

Aug 30, 2011
5 / 5 (1) 0

Soil microbes accelerate global warming

More carbon dioxide in the atmosphere causes soil to release the potent greenhouse gases methane and nitrous oxide, new research published in this week's edition of Nature reveals. "This feedback to our changing atmosphere means ...

Jul 13, 2011
3.7 / 5 (6) 4 | with audio podcast

Manure runoff depends on soil texture

Research has documented the rise of nutrient runoff from flat agricultural fields with high rates of precipitation that adds nitrates and phosphates to waterways.

Mar 29, 2011
not rated yet 0

Recording the soundscapes of spring

This April, when you step outside and hear the first sounds of spring, you won't be hearing just songbirds and buzzing insects, but aural evidence of an awakening ecosystem.

Mar 11, 2011
not rated yet 0

Statistical analysis can estimate crop performance

Scientists at Rothamsted Research, United Kingdom, in collaboration with the International Center for Agriculture Research in the Dry Areas (ICARDA), Syria have developed a method of accounting for spatial trend in single ...

Jan 07, 2011
4.5 / 5 (2) 0

A review of vegetated buffer efficacy

Agricultural nonpoint source pollution has been listed as one of the leading sources of pollution in rivers and water bodies throughout the world. Environmental regulators and scientists are making concerted efforts to reduce ...

Feb 16, 2010
5 / 5 (1) 0

Surveying bird biodiversity from space?

(PhysOrg.com) -- A fundamental rule of wildlife ecology says that diverse habitats foster greater biodiversity: The Amazon has far more species than Greenland. But how do habitat and biodiversity relate in a state like Wisconsin, ...

Dec 16, 2009
not rated yet 0