Sustainable dryland cropping systems to enable bioenergy security in the United States
The United States government,in an effort to reduce the nations dependence on petroleum and advance energy security,mandates the production of 136 billion liters of biofuel by 2022.To meet this goal,a coordinated research program was initiated in 2010 by the United States Department of Agriculture(USDA).Regional Biomass Research Centers were established to address the barriers and capacities to produce biofuels across the highly diversified agricultural regions of the United States.In the western United States,where precipitation limits crop diversity and production,biofuel is anticipated to be produced from a limited number of agricultural feedstocks.The most promising feedstocks include crop residue and oilseeds.Removal of crop residue for biofuel may only be possible within certain areas of the western United States because retention of crop residue is vital to maintaining or improving soil quality across broader areas with low biomass production.A limited number of oilseed crops have been grown with success in localized areas in the west,but their absence from cropping systems is largely due to the lack of viable markets.Camelina appears promising as an oilseed crop,but adoption to the region will require development of high yielding cultivars and agronomic and rotational practices that are profitable and protect environmental resources.Partnerships among the USDA Agricultural Research Service(ARS),industry,and universities have been developed as an initial step toward developing and testing sustainable bioenergy cropping systems to achieve bioenergy security.
Brenton Sharratt Jeffrey Steiner
USDA-Agricultural Research Service,Pullman,Washington USDA-Agricultural Research Service,Beltsville,Maryland
国际会议
The 11th International Conference on Development of Drylands(第十一届国际干旱区大会)
北京
英文
111-120
2013-03-18（万方平台首次上网日期，不代表论文的发表时间）