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clean cultivation; clean culture; one-course farming; single crop a year; single-crop farming; single cropping; sole cropping | |||
clean tillage; pure culture | |||
monoculture; single culture | |||
monocropping; monocropping pattern; monocultivation | |||
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one-crop farming | |||
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single cropping | |||
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monoculture | |||
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one-course rotation | |||
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pure culture | |||
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single seeding |
单 作 : 678 phrases in 80 subjects |