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Business, Economy and Management --- Economics --- USA --- agriculture --- economic botany --- gardening --- ministries --- periodical
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Agriculture --- Agricultural productivity --- Agricultural conservation --- Food --- Consumer education --- Consumers' preferences --- Home economics --- Economic aspects --- United States. --- Research. --- United States --- Rural conditions. --- duplicates available --- USA --- agriculture --- ministries --- periodical --- Agriculture Sciences --- General and Others
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North America --- USA --- forest products --- forestry
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periodical --- forestry --- Caribbean
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United States --- potatoes --- Solanum tuberosum --- Ipomoea batatas
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Lycopersicon esculentum --- plant diseases --- phytopathology
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corn --- Zea mays --- United States --- plant diseases
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pesticides --- soil ecology --- insect-plant relationships --- pest control
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