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Spraying time in relation to effect on weeds in winter cereals when spraying in autumn



Spraying time in relation to effect on weeds in winter cereals when spraying in autumn



DJF Rapport, Markbrug ( 23): 139-145



The influence of herbicide application date in winter cereals was investigated. When applications were made pre-emergence, at GS 10-11 and GS 12-13, the best control effects were observed with spraying at GS 10-11. At GS 10-11, weeds often have 0-2 leaves. The effects are relatively constant over a longer period, from pre-emergence to GS 12-13. Data from the database of field trials showed the tendency for weed control to be most efficient when applications are made 2-4 weeks after drilling.

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