• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Indian Journal of Weed Science >Yield performance of rainfed rice under planting methods and weed control measures
【24h】

Yield performance of rainfed rice under planting methods and weed control measures

机译：种植方式下旱稻的产量表现及杂草防治措施。

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

A field experiment was conducted at Kotwa, Azamgarh during rainy season of 2008 and 2009 to evaluate the comparative efficacy of various planting methods and weed control measures on weeds density growth, yield attributes, grain yield and economics ofrice variety ‘Godawari Four main rice establishment techniques comprised with six sub-plot weed control practices was laid out in split plot design and replicated thrice. Echinichloa colona, E. crusgalli, Cyperus rotundus, C. difformis and Commelina benghalensis were predominant weed species. Among the rice establishment techniques, puddled transplanted practices proved best for reducing weed dry matter accumulation and produced significantly highest mean grain yield (3.89 t/ha) along with yield contributing parameters in comparison to rest planting methods. Direct drum-seeded rice under puddled condition were observed to be significantly superior and recorded 2.821/ ha more mean grain yield over direct-dry seeding. Application of pretilachlor 750 g/ha pre-emergence followed by cyhalofop-butyl 60 g/ha post-emergence at 25 DAS/DAT was found quite effective against mixed weed flora which recorded statistically similar grain yield to that of repeated hand weedings. The integration of herbicide with tools, viz. pretilachlor 750 g/ha supplemented with mechanical weeding at 25 DAS/DAT again found equally effective in increasing the grain yield as pre- and post-emergence applied herbicides.
机译：在2008年和2009年的雨季期间，在Azamgarh的Kotwa进行了田间试验，以评估各种种植方法和杂草控制措施对水稻品种'Godawari的杂草密度生长，产量特性，籽粒产量和经济性的比较功效四种主要水稻栽培技术。在分割样地设计中设计了六个子样杂草控制措施，并重复了三次。主要的杂草种类有埃希氏菌属菌落，克鲁斯大肠杆菌，圆形莎草，艰难梭菌和孟加拉孔雀。在水稻的定植技术中，水pu插秧实践被证明是减少杂草干物质积累的最佳方法，与其他种植方法相比，平均谷粒平均产量最高（3.89吨/公顷），并且贡献了产量参数。观察到在成浆状态下直接播种的水稻明显优于直接播种，并记录的平均谷物产量高出2.821 / ha。发现在25 DAS / DAT时，出苗前施用750 g / ha的丙草草胺，出苗后施用60 g / ha的氯氟丁酯，对混合杂草区系非常有效，其记录的谷物产量与重复的手工除草相近。除草剂与工具的整合，即。 750 g /公顷的丙草胺丙草胺和25 DAS / DAT的机械除草剂再次与出苗前和出苗后施用除草剂一样有效地提高了谷物产量。

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