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Managing carbon and nutrients for sustainable agriculture systems in Washington State. Climate Friendly Farming TM. Chad Kruger BIOAg Educator Ctr. For Sustaining Ag & Natural Resources WSU Sustainability Week October 23, 2006. The Mission of CSANR is to.
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Managing carbon and nutrients for sustainable agriculture systems in Washington State Climate Friendly FarmingTM Chad Kruger BIOAg Educator Ctr. For Sustaining Ag & Natural Resources WSU Sustainability Week October 23, 2006
The Mission of CSANR is to . . . develop and foster agriculture and natural resource management that is • economically viable • environmentally sound, and • socially acceptable through interdisciplinary relationships between WSU, growers, industry, environmental groups, agencies, and the people of Washington.
Climate Friendly FarmingTM:Moving from Source to Sink Washington State University helping farmers develop and implement agricultural systems and practices that mitigate global climate change.
Source: Seattle PI Methane blanket around earth, GISS, NASA Mountain Pine Beetle, British Columbia. Photo by Lorraine Maclauchlan, Ministry of Forests, Southern Interior Forest Region Source: IPCC Global Environmental Degradation
Global Carbon Pools / Annual Flux Atmosphere, 750 Gt Fossil fuels, 4000 Gt Terrestrial, 2000 Gt Soil 1550 Gt Biota 450 Gt Oceans 38,000 Gt Lal et al. (1995)
Agriculture as a source of GHG’s • Ag emits approximately 7% of US greenhouse gas emissions, the third largest source after the energy and transportation sectors (EPA 2004); ~20% of global emissions. • 65% of methane emissions are from agriculture (methane is 21 X’s as potent of GHG as CO2). • 40% of N2O emissions are due to agriculture (nitrous oxide is 310 X’s as potent of GHG as CO2).
Carbon Sequestration: Tillage, Crop Rotation Impact of crop rotation on soil carbon storage
Site-Specific N Management Soil Organic Carbon (0-10 cm, g/kg) Nitrogen Use Efficiency: Managing variability in the landscape 10 – 20% reduction in N applied without yield/quality consequence
Rapeseed Crambe Safflower Mustard Soybean Flax Sunflowers Biomass Energy and Products from Agriculture
Home Grown Energy: Biomass Crops Blue-bunch wheat grass switchgrass Reed canary grass Hybrid poplar
Biogas Collection Anaerobic Digester 1 2 3 4 5 Biomass Inventory Calculate Dry Values Identify Biomass Categories Inventory By County and Category Calculate Methane Potential Convert to electricity Eastern Washington 4.3 M tons/year 3.1 billion kWh 40% EW residential need Entire State 1769 MW capacity 50% of state residential need ~1.5 billion g ethanol > 12 million tons CO2 reduction
Dairy manure anaerobic digestion co-product research and development Nutrients CHP, LNG / CNG, Hydrogen, fertilizer, plastics textiles Fiber Carbon Credit & Green Tag
Contact Information: Chad Kruger, BIOAg Educator WSU, CSANR 1100 N. Western Ave. Wenatchee, WA 98801 509-293-5847 http://csanr.wsu.edu http://cff.wsu.edu cekruger@wsu.edu