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crop rotation (2) |
fertilization (1) |
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maize (2) |
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crop rotation (2) |
fertilization (1) |
korovi (1) |
kukuruz (1) |
maize (2) |
monocultures (1) |
monokultura (1) |
plodored (1) |
rezerve semena (1) |
seedling emergence method (1) |