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共检索到8条 ,权限内显示50条;
Conservation-Practice Adoption Rates Vary Widely by Crop and Region
- 关键词：
- conservation policy
- 年份：
- 2015
- 摘要：
- This research analyzes national and regional adoption of no-till and strip-till ...
An Economic Assessment of Policy Options To Reduce Agricultural Pollutants in the Chesapeake Bay
- 关键词：
- conservation policy
- 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：
- Corn nitrogen Agricultural Resource Management Survey nitrogen management conservation programs
- 年份：
- 2012
- 摘要：
- of biodiversity. Improved nitrogen management on cropland has been a longstandi ...
Agricultural Resources and Environmental Indicators, 2012
- 关键词：
- conservation policy
- 年份：
- 2012
- 摘要：
- Agricultural Resources and Environmental Indicators, 2012, describes trends in e ...
Nitrogen in Agricultural Systems: Implications for Conservation Policy
- 关键词：
- conservation policy
- 年份：
- 2011
- 摘要：
- Nitrogen is an important agricultural input that is critical for crop production ...
Agricultural Resources and Environmental Indicators, 2006 Edition
- 关键词：
- conservation policy
- 年份：
- 2006
- 摘要：
- These chapters describe trends in resources used in and affected by agricultural ...
Greening Income Support and Supporting Green
- 关键词：
- conservation policy
- 年份：
- 2006
- 摘要：
- A multitude of design decisions influence the performance of voluntary conservat ...
Environmental Compliance in U.S. Agricultural Policy: Past Performance and Future Potential
- 关键词：
- conservation policy
- 年份：
- 2004
- 摘要：
- Since 1985, U.S. agricultural producers have been required to practice soil cons ...
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