Using weed emergence and phenology models to determine critical control windows for winter-grown carinata (<i>Brassica carinata</i>)
نویسندگان
چکیده
Abstract Adoption of the new biofuel crop carinata ( Brassica A. Braun) in southeastern United States will largely hinge on sound agronomic recommendations that can be economically incorporated into and are compatible with existing rotations. Timing weed control is crucial for yield protection long-term seedbank management, but predictive emergence models have not been as widely studied winter crops this purpose. In work, we use observed predicted a annual community to create timing according phenology progression. Observed timings four species North Carolina were used validate previously published developed weeds Florida by accounting temperature daylength differences, approach explained more than 70% variability emergence. Emergence stinking chamomile Anthemis cotula L.) cutleaf evening primrose Oenothera laciniata Hill.) followed biphasic patterns comparable wild radish Raphanus raphanistrum L.), which 82% 84% variation, respectively. Using growth, critical windows (CCW) estimated Clayton, NC, Jay, FL, different planting dates. The results demonstrated how early coincided three competitive weeds, could also remove large proportion these species. framework affect growth an instructive decision-making tool help prepare farmers manage carinata, it useful management planning other crops.
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ژورنال
عنوان ژورنال: Weed Science
سال: 2022
ISSN: ['0043-1745', '1550-2759']
DOI: https://doi.org/10.1017/wsc.2022.30