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33条 ,权限内显示50条;
Targeting Investments To Cost Effectively Restore and Protect Wetland Ecosystems: Some Economic Insights
- 关键词：
- nitrogen removal
- 年份：
- 2015
- 摘要：
- The environmental benefits of restoring and preserving wetlands-including cleane ...
An Economic Assessment of Policy Options To Reduce Agricultural Pollutants in the Chesapeake Bay
- 关键词：
- phosphorus
- 年份：
- 2014
- 摘要：
- In 2010, a Total Maximum Daily Load (TMDL) was established for the Chesapeake Ba ...
Nitrogen Management on U.S. Corn Acres, 2001-10
- 关键词：
- nitrogen
- 年份：
- 2012
- 摘要：
- Nitrogen is a critical input in agriculture, enabling farmers to produc ...
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 is an important agricultural input that is critical for crop p ...
The Role of Agriculture in Reducing Greenhouse Gas Emissions
- 关键词：
- agricultural economics climate change conservation greenhouse gas emissions carbon land methane mitigation agricultural practices
- 年份：
- 2010
- 摘要：
- the amount of nitrogen fertilizer applied to crops, changing livestock ...
Factors Contributing to the Recent Increase in U.S. Fertilizer Prices, 2002-08
- 关键词：
- phosphate
- 年份：
- 2009
- 摘要：
- of a number of domestic and global long- and shortrun supply and demand factors ...
Impact of Rising Natural Gas Prices on U.S. Ammonia Supply
- 关键词：
- nitrogen fertilizers
- 年份：
- 2007
- 摘要：
- The volatile and upward trend in U.S. natural gas prices from 2000-06 has led to ...
Managing Manure to Improve Air and Water Quality
- 关键词：
- nitrogen
- 年份：
- 2005
- 摘要：
- Animal waste from confined animal feeding operations is a potential source of ai ...
Technical Documentation of the Regional Manure Management Model for the Chesapeake Bay Watershed
- 关键词：
- nitrogen
- 年份：
- 2005
- 摘要：
- As part of a broader ERS assessment of the costs of manure management, a regiona ...
Manure Management for Water Quality: Costs to Animal Feeding Operations of Applying Manure Nutrients to Land
- 关键词：
- nitrogen
- 年份：
- 2003
- 摘要：
- Nutrients from livestock and poultry manure are key sources of water pollution. ...
