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China's Food and Agriculture: Issues for the 21st Century
关键词:
irrigation
年份:
2002
摘要:
, regional diversity, livestock sector, biotechnology, water and ir ...
Agricultural Chemical Usage - Fruit and Vegetable Agricultural Practices
关键词:
USDA agricultural economics statistics Mann Cornell agriculture
年份:
2001
摘要:
This report contains the results of a survey of growers and packers on informati ...
Production Practices for Major Crops in U.S. Agriculture, 1990-97
关键词:
Crop rotation nutrient management pest management pesticide use tillage systems
年份:
2000
摘要:
r agricultural production practices in 1964. In 1990, through the President's ...
Natural Amenities Drive Rural Population Change
关键词:
natural amenities population change retirement recreation
年份:
1999
摘要:
Climate, topography, and water area are highly related to rural county ...
Wetlands and Agriculture: Private Interests and Public Benefits
关键词:
wetlands no net loss Swampbuster conservation restoration
年份:
1998
摘要:
Society has recently increased the value it places on the services that wetlands ...
Agricultural Resources and Environmental Indicators, 1996-97
关键词:
AREI natural resources farming practices land use water quality conservation
年份:
1997
摘要:
This report identifies trends in land, water, and commercial input use, ...

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