• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Weed technology >Relationships Among Green Foxtail (Setaria viridis) Seedling Development, Growing Degree Days, and Time of Nicosulfuron Application
【24h】

Relationships Among Green Foxtail (Setaria viridis) Seedling Development, Growing Degree Days, and Time of Nicosulfuron Application

机译：青尾草（Setaria viridis）幼苗发育，烟碱度和烟嘧磺隆施用时间之间的关系

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

摘要

Success of postemergence weed management often depends upon application timing and weed seedling size. To develop a predictive tool for estimating green foxtail development and optimizing timing of management operations, seedling growth was monitored in fields for two years, as well as in a single greenhouse experiment, and compared with elapsed thermal time (growing degree days, GDD, base 10C). The relationship between seedling height (mm) and GDD was similar both years and could be described by the following equation: Height = (-0.27 + 0.033 * GDD)~2. A comparable equation described seedling growth in a greenhouse. Leaf number was linearly related to GDD. Green foxtail in corn was controlled with nicosulfuron applied at seven intervals between 100 and 450 GDD after corn planting in 1993 and 1994. In 1993 corn yield losses due to green foxtail interference were least when nicosulfuron was applied 200 to 300 GDD after planting, at which time green foxtail height was 50 to 100 mm. In 1994 corn yield losses were minimized if nicosulfuron was applied any time before 300 GDD.
机译：出苗后杂草处理的成功通常取决于施药时间和杂草苗的大小。为了开发预测绿色狐尾发育和优化管理操作时机的预测工具，在田间以及两年的一次温室试验中监测了幼苗的生长，并将其与经过的热时间（生长度天数，GDD，基数）进行了比较。 10C）。两年间，苗高（mm）与GDD的关系相似，可用以下等式描述：高度=（-0.27 + 0.033 * GDD）〜2。一个可比的方程式描述了温室中幼苗的生长。叶数与GDD线性相关。在1993年和1994年的玉米播种后，在100和450 GDD之间以七个间隔施用烟嘧磺隆来控制玉米中的绿色狐尾草。在1993年，由于烟熏干扰导致的玉米单产损失在播种后200至300 GDD施用烟嘧磺隆时最少。时间绿色狐尾高度为50至100毫米。在1994年，如果在300 GDD之前的任何时间施用烟嘧磺隆，玉米的产量损失将降至最低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
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