2018 and 2019 research results for IWMPRAISE UK can be found here:
Individual trial summaries
Can shallow cultivation replace glyphosate ahead of spring cropping?
Management of black-grass relies upon a handful of well-utilised cultural control techniques; however these themselves are reliant upon glyphosate to control any weed flushes prior to drilling. This trial looks to find ways that reduce the reliance on glyphosate in these systems, but maintains effective grass-weed management. In this example, repeated shallow cultivations have tested against, and alongside, glyphosate. http://www.iwm-uk.co.uk/wp-content/uploads/2020/05/SB19-9143_report_final.pdf
The effect of drilling date of spring cereals on black-grass control
Spring drilling is a key cultural technique for the control of black-grass in the UK. As this is increasingly used it has become clear that there are ways to optimise this technique. Central to this is drilling date, and the choice of crop species to maximise crop competition. This trial explores the requirement for herbicide in spring crops, from the perspective of weed density, and whether the herbicide efficacy is impeded by conditions on application. http://www.iwm-uk.co.uk/wp-content/uploads/2020/05/SB19-9155-IWMPRAISE-report.pdf
Cultural control of ryegrass
Italian ryegrass has a similar germination pattern to black-grass, so it is expected that a similar response to cultivation and drilling date will be observed. A matrix of these two techniques was set-up to examine how accurate this prediction is. The results demonstrate a similar pattern, but with species specific nuances that should be carefully observed. http://www.iwm-uk.co.uk/wp-content/uploads/2020/05/IRG_cultural_control_shortreport.pdf