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Threshold limit principles and subsequent weed infestation. Depending on the cropping sequence, soil cultivation and sowing dates, weed numbers may increase or decrease



Threshold limit principles and subsequent weed infestation. Depending on the cropping sequence, soil cultivation and sowing dates, weed numbers may increase or decrease



DLG Mitteilungen 101(17): 928, 930-931



Recommendations on how to avoid serious reinfestation in the year following weed control carried out using economic threshold limits are presented. Among the main problem-weeds likely to survive economic control measures are Galium aparine and Matricaria perforata in rape, Viola arvensis in spring wheat and Mercurialis annua in sugarbeet. Problems arise in the calculation of economic threshold limits, with values depending on the crop species.

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Accession: 001719336

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