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Background <p>Sugar beet (<i>Beta vulgaris</i> var. saccharifera, L.) is the main source of sugar in many countries and ranks 2nd after sugarcane worldwide. Being poor competitor, weeds are a major obstacle against healthy growth and sustainable production in sugar beets. The current study was conducted during two successive seasons (2019/2021) with the aim of assessing the response of weed growth and sugar beet yield to certain herbicides that are commonly used in different cropping systems. In conjunction with unweeded check and hand hoeing twice, Goltix<b>®</b> 70 SC, Tegro<b>®</b> 27% EG and Betanal<b>®</b> MaxxPro herbicides were applied alone (at the recommended rates) or in combination (50 and 75%) with urea (2%) in a randomized complete block design.</p> Results <p>The results indicated that weed competition significantly reduced plant growth, as well as root and sugar yields by 50.21% to 68.68%. Overall, all herbicidal treatments provided significant weed control with positive changes in sugar beet yield and quality. While the reduction in total weed biomass remained relatively consistent across the various treatments, broad-leaved and narrow-leaved weeds exhibited marked differences in their responses to the herbicide treatments. Obviously, no much significant differences were observed between the individual application of the herbicides and their combined use, particularly at the 75% dilution level with urea, in terms of either weed suppression or crop enhancement. The maximum root yield and better weed control were proportionally achieved with Tegro and Betanal at the recommended concentrations followed by hand hoeing twice, and their use significantly contributed to further improvement in quality characteristics compared to those recorded with the other treatments.</p> Conclusions <p>Using such herbicides at reduced doses in combination with urea proved to be a feasible approach for improving application efficacy without compromising root yield or affecting sugar quality. This strategy may also contribute to reducing herbicide resistance while promoting more sustainable, environmentally friendly weed management in sugar beet production in the foreseeable future.</p>

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Enhancing sugar beet quality and productivity under the effects of co-application of urea and herbicides on weed control and crop performance

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月26日

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  • Ibrahim Mohamed El-Metwally,
  • Tarek Abd El-Ghafar El-Shahawy

摘要

Background

Sugar beet (Beta vulgaris var. saccharifera, L.) is the main source of sugar in many countries and ranks 2nd after sugarcane worldwide. Being poor competitor, weeds are a major obstacle against healthy growth and sustainable production in sugar beets. The current study was conducted during two successive seasons (2019/2021) with the aim of assessing the response of weed growth and sugar beet yield to certain herbicides that are commonly used in different cropping systems. In conjunction with unweeded check and hand hoeing twice, Goltix® 70 SC, Tegro® 27% EG and Betanal® MaxxPro herbicides were applied alone (at the recommended rates) or in combination (50 and 75%) with urea (2%) in a randomized complete block design.

Results

The results indicated that weed competition significantly reduced plant growth, as well as root and sugar yields by 50.21% to 68.68%. Overall, all herbicidal treatments provided significant weed control with positive changes in sugar beet yield and quality. While the reduction in total weed biomass remained relatively consistent across the various treatments, broad-leaved and narrow-leaved weeds exhibited marked differences in their responses to the herbicide treatments. Obviously, no much significant differences were observed between the individual application of the herbicides and their combined use, particularly at the 75% dilution level with urea, in terms of either weed suppression or crop enhancement. The maximum root yield and better weed control were proportionally achieved with Tegro and Betanal at the recommended concentrations followed by hand hoeing twice, and their use significantly contributed to further improvement in quality characteristics compared to those recorded with the other treatments.

Conclusions

Using such herbicides at reduced doses in combination with urea proved to be a feasible approach for improving application efficacy without compromising root yield or affecting sugar quality. This strategy may also contribute to reducing herbicide resistance while promoting more sustainable, environmentally friendly weed management in sugar beet production in the foreseeable future.