作者:Daniel Hellerstein, Claudia Hitaj,and David Smith
发布日期:2017
关键词:pollinators;honey bees;...
发布机构:United States Department of Agriculture
作者:Ron Sands, Scott Malcolm, Shellye Suttles , and Elizabeth Marshall
发布日期:2017
关键词:bioenergy;land use;...
发布机构:United States Department of Agriculture
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3 Brazil's Agricultural Land Use and Trade: Effects of Changes in Oil Prices and Ethanol Demand [科技报告]
作者:Constanza Valdes, Kim Hjort, Ralph Seeley
发布日期:2016
关键词:Brazil;agriculture;...
发布机构:United States Department of Agriculture
作者:Ron Sands, Carol Jones , and Elizabeth Marshall
发布日期:2014
关键词:Productivity;food demand;...
发布机构:United States Department of Agriculture
作者:Craig Osteen , Jessica Gottlieb , Utpal Vasavada;Marcel Aillery;Eldon Ball , Jayson Beckman;等
发布日期:2012
关键词:Agricultural biotechnology;conservation policy;...
发布机构:United States Department of Agriculture
作者:Elizabeth Marshall;Margriet Caswell , Scott Malcolm;Mesbah Motamed;等
发布日期:2011
关键词:Renewable fuels;feedstocks;...
发布机构:United States Department of Agriculture