• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>American Journal of Plant Sciences >Evaluation of New Formulation of Oxyfluorfen (23.5% EC) for Weed Control Efficacy and Bulb Yield in Onion
【24h】

Evaluation of New Formulation of Oxyfluorfen (23.5% EC) for Weed Control Efficacy and Bulb Yield in Onion

机译：新的氧氟苯酚（23.5％EC）制剂对洋葱杂草防治效果和鳞茎产量的评估

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A field experiment were conducted for two years at Agricultural Research Station, Bhavanisagar of Tamil Nadu Agricultural University, during kharif season of 2009 and 2010 to evaluate the new formulation of oxyfluorfen (23.5% EC) on weed control in onion. Weeds constitute one of the biggest problems in agriculture that not only reduce the yield and quality of onion but also utilize essential nutrients. Hence, weed control is essential for increasing onion production. Based on two years field experimentation, it was found that pre-emergence application of oxyfluorfen (23.5% EC) at400 g.ha-1 gave significantly lower total weed density, weed dry weight and higher weed control efficiency at all the intervals. Application of new formulation of oxyfluorfen (23.5% EC) at200 g.ha-1 as pre-emergence herbicide can keep the weed density and dry weight below the economic threshold level and increase the bulb weight (42.56 and43.87 g) and yield (15940 and15610 kg.ha-1) in onion. Unweeded control accounted for lower bulb yield which inturn reflected through higher weed index of 60.6 and 56.1 per cent, respectively during both the years, due to heavy competition of weeds for nutrients, space and light.
机译：在2009年和2010年的卡里夫季，在泰米尔纳德邦农业大学Bhavanisagar农业研究站进行了为期两年的田间试验，以评估氧氟芬新配方（23.5％EC）对洋葱杂草控制的作用。杂草是农业中最大的问题之一，不仅降低了洋葱的产量和质量，而且还利用了必需的养分。因此，控制杂草对于增加洋葱的产量至关重要。根据两年的田间试验，发现在400 g.ha-1浓度的氧氟芬（23.5 ％EC）出苗前施用在所有间隔下均具有明显较低的总杂草密度，杂草干重和较高的杂草控制效率。在发芽前使用200 g.ha-1的新配方氧氟芬（23.5％EC）可使杂草密度和干重保持在经济阈值水平以下，并增加鳞茎重量（42.56和43.87 g）和产量（15940 and15610 kg.ha-1）洋葱。由于杂草对养分，空间和光照的激烈竞争，未除草控制导致鳞茎产量降低，这反过来又反映在这两年中较高的杂草指数分别为60.6％和56.1％。

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