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Agricultural ecology - United States.
概要
作品:
5 作品在 0 項出版品 0 種語言
書目資訊
Fatal harvest : = the tragedy of industrial agriculture /
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Soil and water quality = an agenda for agriculture /
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Bee Pollination in Agricultural Eco-systems.
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Agriculture and the environment in a changing world economy.
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Ecological agrarian : = agriculture's first evolution in 10,000 years /
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主題
Organic farming.
Soil management- United States.
Agriculture- Environmental aspects.
Organic farming- United States.
Agricultural ecology- United States.
Soils- Quality.- United States
Agriculture- Economic aspects- United States.
Agricultural pollution- United States.
Agriculture- Environmental aspects- United States.
Sediment control- United States.
Water quality management- United States.
Pollination by insects.
Agricultural ecology.
Agriculture and state- United States.
Agricultural conservation- Government policy- United States.
Bees- Control- United States.
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