• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Weed technology: A journal of the Weed Science Society of America >Response of Four Summer Annual Weed Species to Mowing Frequency and Height
【24h】

Response of Four Summer Annual Weed Species to Mowing Frequency and Height

机译：Response of Four Summer Annual Weed Species to Mowing Frequency and Height

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Greenhouse experiments were conducted in 2011 to evaluate the effect of mowing frequency and mowing height on four summer annual weed species (large crabgrass, barnyardgrass, giant ragweed, and common lambsquarters). Plants were clipped at three heights (5, 10, or 20 cm) and at two frequencies (single clipping or repeated clippings at the same height) to simulate mowing. A nonclipped control was also grown for each species. When clipped once, large crabgrass, barnyardgrass, and giant ragweed produced at least 90 of the total dry weight (DW) of the nonclipped plants, and common lambsquarters produced at least 75 . A single cut was generally not sufficient to prevent weed seed production or kill any of the weeds in this study. Repeated clipping reduced large crabgrass, giant ragweed, and common lambsquarters reproductive DW to 46, 27, and 10 respectively, of the nonclipped control. Barnyardgrass plants that were repeatedly clipped produced between 0 and 8 of the seed DW of nonclipped plants, depending on clipping height. Repeated clipping reduced weed total DW to below 40 for all species compared to nonclipped plants. Our results suggest that, unless combined with other weed management practices, repeated mowing may be necessary to limit the growth and seed production of these weed species.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号