...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Cogent Food & Agriculture >Cotton fertilization using PGPR Bacillus amyloliquefaciens FZB42 and compost: Impact on insect density and cotton yield in North Benin, West Africa
【24h】

Cotton fertilization using PGPR Bacillus amyloliquefaciens FZB42 and compost: Impact on insect density and cotton yield in North Benin, West Africa

机译：使用PGPR解淀粉芽孢杆菌FZB42和堆肥进行棉花施肥：对西非北贝宁的昆虫密度和棉花产量的影响

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

摘要

This work has compared the effects of the biofertilizer Bacillus amyloliquefaciens FZB42 with that of compost for cotton production. The population dynamics of pests and predators have been studied in order to check whether the use of both fertilization materials can contribute to pest management in cotton. Three treatments were considered: (i) dressing of seeds in rhizobacteria suspension, (ii) introduction of rhizobacterial suspension directly in the pocket, same time with the seeds, and (iii) fertilization with compost. The study was carried out in northwest Benin (West Africa). Results showed that cotton aphids, Aphis gossypii , pink bollworm, Pectinophora gossypiella , leaf roller, Sylepta derogata, and cotton bugs, Dysdercus sp. are the major insect pests encountered in the experimental plots. Cotton bollworm, Helicoverpa armigera , was present but under the economic threshold. The coccinellid predators, Cheilomenes spp., occurred in the experimental plots and almost suppressed aphid proliferation. Other natural enemies such as chrysopids and ant species also occurred and probably contributed to maintain the cotton bollworm under the economic threshold. The treatment with seeds dressed with the rhizobacteria suspension yielded 39% more cotton compared to the compost fertilization. The use of both fertilization materials without application of chemicals can contribute to pest management in cotton.
机译：这项工作比较了生物肥料解淀粉芽孢杆菌FZB42与堆肥对棉花生产的影响。研究了害虫和天敌的种群动态，以检查两种肥料的使用是否有助于棉花的害虫管理。考虑了三种处理方法：（i）在根瘤菌悬浮液中拌种，（ii）与种子同时在袋中直接引入根瘤菌悬浮液，和（iii）用堆肥施肥。该研究在贝宁西北部（西非）进行。结果显示，棉蚜虫，棉蚜，粉红色棉铃虫，棉铃虫，卷叶蛾，棉铃虫和棉虫（Dysdercus sp。）。是实验区遇到的主要害虫。存在棉铃虫（Helicoverpa armigera），但处于经济门槛之下。球虫捕食性天牛科动物，发生在实验区，几乎抑制了蚜虫的繁殖。其他天敌，如金龟子和蚂蚁物种也发生了，可能有助于将棉铃虫维持在经济阈值以下。与堆肥相比，用根瘤菌悬浮液处理的种子处理的棉花产量增加了39％。在不使用化学物质的情况下使用两种肥料都可以促进棉花的害虫防治。

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