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Climate-Friendly Farming Project Underway

Date:
June 24, 2005
Source:
USDA / Agricultural Research Service
Summary:
Reducing greenhouse gases from agriculture is the goal of Climate Friendly Farming, a five-year cooperative project involving the Agricultural Research Service (ARS) and Washington State University (WSU). Agriculture accounts for 7 percent of all U.S. greenhouse gases. For example, cows release methane while digesting food; applying nitrogen-based fertilizers leads to nitrous oxide emissions; and tilling speeds the breakdown of soil organic matter, releasing carbon dioxide into the atmosphere.

Microbiologist Hal Collins examines soil bacteria that cause nitrogen gas to escape from crop fields into the air.
Credit: Photo by Peggy Greb

Reducing greenhouse gases from agriculture is the goal of Climate Friendly Farming, a five-year cooperative project involving the Agricultural Research Service (ARS) and Washington State University (WSU).

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Agriculture accounts for 7 percent of all U.S. greenhouse gases. For example, cows release methane while digesting food; applying nitrogen-based fertilizers leads to nitrous oxide emissions; and tilling speeds the breakdown of soil organic matter, releasing carbon dioxide into the atmosphere.

Agriculture can have positive effects, too. Modifying farm practices can preempt the formation and release of gases. For example, instead of tilling, a farmer might adopt direct seeding, a practice that leaves organic matter relatively undisturbed and increases soil carbon storage, according to ARS soil scientists Hal Collins and Dave Huggins. Collins is based at the ARS Vegetable and Forage Crops Production Research Unit at Prosser, Wash., and Huggins works at the ARS Land Management and Water Conservation Research Unit at Pullman, Wash.

They're among 30 researchers, Extension agents and others comprising the Climate Friendly Farming team. The project, led by Chris Feise, director of WSU's Center for Sustaining Agriculture and Natural Resources, was established in 2004 to address concerns that greenhouse gases from farming help drive global climate change.

Collins and Huggins lead research to mitigate emissions from irrigated and dryland farming systems. WSU scientists oversee dairy research, computer modeling, socio-economic analyses and farmer outreach.

Collins' projects include evaluating the carbon-sequestering and organic matter-building potential of fiber obtained from manure that's passed through an anaerobic digester. He's also tracking the fate of nitrogen that's been applied to corn and potato crops through center-pivot irrigation.

Huggins, meanwhile, is designing novel cropping systems that avoid disturbing the soil. Two examples are conventional and organic direct-seeding, and perennial cropping systems. He's also integrating global positioning and geographical information systems to devise new methods of applying and using nitrogen fertilizer that will mitigate greenhouse gas emissions.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


Story Source:

The above story is based on materials provided by USDA / Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA / Agricultural Research Service. "Climate-Friendly Farming Project Underway." ScienceDaily. ScienceDaily, 24 June 2005. <www.sciencedaily.com/releases/2005/06/050619192439.htm>.
USDA / Agricultural Research Service. (2005, June 24). Climate-Friendly Farming Project Underway. ScienceDaily. Retrieved January 26, 2015 from www.sciencedaily.com/releases/2005/06/050619192439.htm
USDA / Agricultural Research Service. "Climate-Friendly Farming Project Underway." ScienceDaily. www.sciencedaily.com/releases/2005/06/050619192439.htm (accessed January 26, 2015).

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