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7条 ,权限内显示50条;
USDA ERS - Cover Crop Trends, Programs, and Practices in the United States
- 年份:
- 2021
- 摘要:
- On U.S. cropland, the use of cover crops increased by 50 percent between 2012 an ...
Development, Adoption, and Management of Drought-Tolerant Corn in the United States
- 关键词:
- drought genetically engineered crops soil moisture conservation irrigation corn corn yields Agricultural Resource Management Survey
- 年份:
- 2019
- 摘要:
- and moisture conservation practices, as well as genetically engineered ...
Conservation-Practice Adoption Rates Vary Widely by Crop and Region
- 关键词:
- No-till strip-till cover crops nutrient management nitrogen conservation policy Agricultural Resource Management Survey soil health greenhouse gas emissions
- 年份:
- 2015
- 摘要:
- e "partial" adopters, adopting these conservation practices on some but ...
The Farm Act's Regional Equity Provision: Impacts on Conservation Program Outcomes
- 年份:
- 2010
- 摘要:
- conservation practices on working farmland. Along with seeking cost-ef ...
The Roles of Economists in the U.S. Department of Agriculture
- 年份:
- 2009
- 摘要:
- conservation practices; participating in trade negotiations; ensuring ...
Rewarding Farm Practices versus Environmental Performance
- 关键词:
- Conservation programs conservation program design agri-environmental policy cost-effectiveness conservation management practices environmental performance stewardship payments
- 年份:
- 2006
- 摘要:
- , and the means by which applicants are selected. The particular issue examined ...
首页上一页1下一页尾页