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Survey of the presence and methods of control of wild oat, black grass and couch grass in cereal crops in the United-Kingdom during 1977

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Figure

Table 1. Cereal crops surveyed
Table 2.Wild oat:occurrence on farms and on surveyed area and species distribution as percentage of surveyedarea byregionand country
Table 4. Black grass and couch grass: occurrence on farms and on surveyed cereal fields
Table 5. Black grass and couch grass: infestations grouped by number of seed heads per hectare and expressedas percentage of surveyed area in each region and country
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