筛选
研究报告
产业分析报告
科研态势报告
宏观发展报告
竞争力分析报告
高端论坛报告
国际行业报告
农业区划报告
报告来源
年份
增值服务
定制报告
面向用户开展个性化定制服务，包括领域学科态势分析、领域学科专利分析、领域研究热点前沿与研究热点分析和领域学科态势分析总结。
学术趋势分析
采用文献计量等方法对分析主题进行多维度统计快速分析，支持在线查看和一键下载。
热门报告
共检索到26条 ,权限内显示50条;
Trends and Developments in Hog Manure Management: 1998-2009
- 年份：
- 2011
- 摘要：
- ller areas. With less cropland for spreading the manure, hog farmers ma ...
Major Uses of Land in the United States, 2007
- 关键词：
- Land use land-use change agricultural land nonagricultural land cropland forest-use land forestland pasture rangeland rural residential land
- 年份：
- 2011
- 摘要：
- ); grassland pasture and rangeland at 614 million (27 percent); cropland...
Nitrogen in Agricultural Systems: Implications for Conservation Policy
- 关键词：
- Reactive nitrogen nitrogen management fertilizer water quality greenhouse gas economic incentives conservation policy regulation
- 年份：
- 2011
- 摘要：
- nitrogen management and identifies issues affecting their potential performance ...
Grassland to Cropland Conversion in the Northern Plains: The Role of Crop Insurance, Commodity, and Disaster Programs
- 年份：
- 2011
- 摘要：
- e grasslands being converted to cropland in the United States and espec ...
Manure Use for Fertilizer and for Energy: Report to Congress
- 关键词：
- Manure fertilizer fertilizer nutrients energy corn dairy hogs Agricultural Resource Management Survey (ARMS)
- 年份：
- 2009
- 摘要：
- of fertilizer, and its other uses. About 5 percent of all U.S. cropland...
Major Uses of Land in the United States, 2002
- 关键词：
- Land use land-use change agricultural land nonagricultural land cropland forest-use land forestland pasture rangeland rural residential land
- 年份：
- 2006
- 摘要：
- .8 percent); grassland pasture and range land, 587 million acres (25.9 percent); ...
Possible Implications for U.S. Agriculture From Adoption of Select Dietary Guidelines
- 关键词：
- Agriculture dairy Dietary Guidelines for Americans dietary recommendations food food consumption food production Food Guidance System fruit MyPyramid
- 年份：
- 2006
- 摘要：
- U.S. cropland in 2002. To meet the dairy guidelines, consumption of mi ...
Environmental Effects of Agricultural Land-Use Change: The Role of Economics and Policy
- 关键词：
- Conservation Reserve Program (CRP) crop insurance erosion extensive margin farm policy imperiled species land use land-use change land quality nutrient loss
- 年份：
- 2006
- 摘要：
- of environmental sensitivity. If cropland that shifts in and out of pr ...
Trends in U.S. Tobacco Farming
- 年份：
- 2004
- 摘要：
- with 9.0 acres in 1997. Tobacco farms averaged only 62 acres of harvested c ...
Environmental Compliance in U.S. Agricultural Policy: Past Performance and Future Potential
- 关键词：
- conservation compliance Sodbuster Swampbuster conservation policy agri-environmental policy nutrient management buffer practices
- 年份：
- 2004
- 摘要：
- Since 1985, U.S. agricultural producers have been required to practice soil cons ...
