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;
USDA ERS - Irrigation Organizations: Water Inflows and Outflows
- 关键词：
- water inflows water outflows irrigation delivery organizations Survey of Irrigation Organizations water marketing
- 年份：
- Augu
- 摘要：
- cropland in the United States. This report examines these delivery org ...
USDA ERS - Cover Crop Trends, Programs, and Practices in the United States
- 关键词：
- Cover crop conservation practice soil health conservation program financial assistance erosion tillage
- 年份：
- 2021
- 摘要：
- On U.S. cropland, the use of cover crops increased by 50 percent betwee ...
Japan: Major Cropland Support Payment Programs Operated by MAFF
- 关键词：
- 年份：
- 2021
- 摘要：
- This report summarizes the major cropland support payment programs oper ...
Reducing Nutrient Losses From Cropland in the Mississippi/Atchafalaya River Basin: Cost Efficiency and Regional Distribution
- 关键词：
- hypoxia targeting compliance Gulf of Mexico Mississippi/Atchafalaya River Basin conservation practices wetlands buffers nitrogen reduction phosphorus reduction
- 年份：
- 2018
- 摘要：
- of achieving a 45-percent reduction in cropland nutrient loads to the ...
Agricultural Land Values
- 年份：
- 2016
- 摘要：
- real estate (farmland and buildings), cropland, and pastureland.
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 l ...
Water Conservation in Irrigated Agriculture: Trends and Challenges in the Face of Emerging Demands
- 关键词：
- Agricultural water conservation irrigated agriculture irrigation efficiency water supply and demand irrigation technologies water management practices water conservation policy
- 年份：
- 2012
- 摘要：
- States that account for nearly three-quarters of U.S. irrigated agriculture. De ...
The Ethanol Decade: An Expansion of U.S. Corn Production, 2000-09
- 关键词：
- Corn soybeans ethanol yields Agricultural Resource Management Survey ARMS acreage bioenergy ethanol indirect effects
- 年份：
- 2011
- 摘要：
- uncultivated hay to cropland, and the expansion of double cropping (co ...
