Optimising the cultural control of black-grass (Alopecurus myosuroides)

摘要

The third year of this study was established in autumn 2012. It confirmed that cultivation depth and consolidation (rolling) has a clear influence on the primary emergence of black-grass in the stale seedbed prior to sowing and the overall numbers surviving in the crop after treatment with an herbicide. Developing such a cultivation strategy that promotes the most rapid establishment of black-grass seed and maintains seedbed safety from adverse weather is a key requirement to bring the effective 'delayed sowing point' as early in the autumn period as possible. The use of glyphosate to prevent black-grass seedlings growing past two leaves within this experiment would appear to support the view that root exudates from this weed reduce further germination levels.