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共检索到7条 ,权限内显示50条;
Agricultural Resources and Environmental Indicators, 2019
- 关键词：
- agriculture environmental indicators farm production and environmental impacts agricultural productivity agricultural pest management farmland ownership irrigated agriculture nutrient management agricultural research and development water conservation
- 年份：
- 2019
- 摘要：
- Agricultural Resources and Environmental Indicators, 2019, describes tr ...
USDA ERS - Agricultural Resources and Environmental Indicators, 2019
- 年份：
- 2019
- 摘要：
- Agricultural Resources and Environmental Indicators, 2019, describes tr ...
Agricultural Resources and Environmental Indicators, 2012
- 关键词：
- Agricultural biotechnology conservation policy conservation programs farm types fertilizer use land use land values organic production pest management productivity
- 年份：
- 2012
- 摘要：
- Agricultural Resources and Environmental Indicators, 2012, describes tr ...
Agricultural Resources and Environmental Indicators, 2006 Edition
- 关键词：
- AREI agricultural economics natural resources knowledge resources conservation practices conservation programs land use water conventional agriculture organic agriculture
- 年份：
- 2006
- 摘要：
- These chapters describe trends in resources used in and affected by agricultural ...
Agricultural Resources and Environmental Indicators, 2003
- 关键词：
- AREI agricultural economics land land use land value land ownership water use irrigation natural resources conservation
- 年份：
- 2003
- 摘要：
- This report identifies trends in land, water, and biological resources and comme ...
Agricultural Resources and Environmental Indicators, 1996-97
- 年份：
- 1997
- 摘要：
- This report identifies trends in land, water, and commercial input use, reports ...
Agricultural Resources and Environmental Indicators, 1994
- 关键词：
- land water production inputs cropping practices technology conservation and environmental programs
- 年份：
- 1994
- 摘要：
- This report identifies trends in land, water, and commercial input use, reports ...
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