作者:Carl E. Pray andKeith Fuglie
发布日期:2001
关键词:Agricultural research and development;private sector R&D investments;...
发布机构:United States Department of Agriculture
2 Wheat Outlook: May 2010 [科技报告]
作者:Suresh Persaud
发布日期:2010
关键词:Afghanistan;volatility;...
发布机构:United States Department of Agriculture
作者:Suresh Persaud
发布日期:2012
关键词:Afghanistan;Pakistan;...
发布机构:United States Department of Agriculture
作者:Suresh Persaud
发布日期:2013
关键词:Afghanistan;wheat;...
发布机构:United States Department of Agriculture