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共检索到38条 ,权限内显示50条;
Regional Trends in Extension System Resources
- 关键词：
- cooperative extension service full time equivalent FTE agricultural productivity Smith-Lever Act of 1914 research and development land-grant universities
- 年份：
- 2003
- 摘要：
- s, with the largest declines found in community resource development and 4-H you ...
Natural Resources, Agricultural Productivity, and Food Security
- 关键词：
- Natural resources soils climate land quality land degradation agricultural productivity food security
- 年份：
- 2001
- 摘要：
- This issue brief describes ERS research on international differences in the qual ...
Issues in Food Security
- 关键词：
- Natural resources crops food security food aid food needs income distribution hunger Sub-Saharan Africa agricultural productivity
- 年份：
- 2001
- 摘要：
- is affected by issues like trade liberalization, income distribution, and n ...
Production Practices for Major Crops in U.S. Agriculture, 1990-97
- 年份：
- 2000
- 摘要：
- and natural resources. Partly as a response to these concerns, the U.S ...
Agricultural Resources and Environmental Indicators, 1996-97
- 年份：
- 1997
- 摘要：
- , consumers, and the government) of meeting conservation and environmental goals ...
Partial Interests in Land: Policy Tools for Resource Use and Conservation
- 年份：
- 1996
- 摘要：
- Property rights arise out of law, custom, and the operation of private markets, ...
Agricultural Resources and Environmental Indicators, 1994
- 关键词：
- land water production inputs cropping practices technology conservation and environmental programs
- 年份：
- 1994
- 摘要：
- , and the government) of meeting conservation and environmental goals. The repor ...
The Diverse Social and Economic Structure of Nonmetropolitan America
- 关键词：
- Economic base farming Federal lands government employment manufacturing mining rural development poverty social conditions structural diversity
- 年份：
- 1985
- 摘要：
- on natural resources, (4) counties specializing in government function ...
