...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Biodiversity and Conservation >Effect of pesticide use on weeds, pollinators and microbial activity in Nzoia Sugar Basin of Western Kenya
【24h】

Effect of pesticide use on weeds, pollinators and microbial activity in Nzoia Sugar Basin of Western Kenya

机译：农药在肯尼亚西部硝基亚糖盆盆地杂草，粉丝器和微生物活性的影响

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

摘要

Diversity of flowering plants, pollinators and microbial activity was assessed in five farms of Nzoia Sugar Company and one outgrower farm in Western Kenya. The overarching study objective was to determine differences in species diversity in the sugar farms using agrochemicals and those not using. To sample flowering plants, transects were laid along sugar farms with quadrats 20 m apart. Sweep nets captured fauna flying or attached to the flora. Microbial activities were assessed following application of 2,4 D and Hexazinone in soil from an outgrower farm (OGF) where these herbicides had not been applied before. Microbial activity expressed as formazan concentration following triphenyltetrazolium chloride (TTC) reduction in total Dehydrogenase activity (DHA) test. Results indicated that outgrower farm had higher flowering plant species richness than the sugar farms although diversity of both flowering plants and flower visitors in the sugar farms was higher. Results indicated that hexazinone significantly (p<0.05) increased microbial activity in soils to a high of 172.945 ug g-1 following 7 days incubation while 2,4-D suppressed microbial activity to less than 2 ug g-1 in first three days of incubation. From this study, it is recommended that bee pastures composed of plants frequently visited by bees should be left to grow around farms to increase pollinators and bee hotel structures for cavity nesting bees erected in agro-ecosystems. Use of pesticides on farms should be minimised and integrated weeds and pest management promoted to increase pollinators and beneficial fauna.
机译：在纽西亚甘油的五个农场和西肯亚西部的一个遗产农场评估了开花植物，粉丝器和微生物活动的多样性。总体研究目标是确定使用农用化学品的糖类农场物种多样性的差异。为了样品开花植物，横断面沿着糖农场铺设了四边形20米。扫蚊蛇捕获了动物的飞行或附着在植物区。在从未申请的未施用这些除草剂的流量农场（OGF）中，在将2,4天和己嗪酮中施用2,4天和六嗪酮进行微生物活性。在总脱氢酶活性（DHA）试验中，在三苯基四唑氯化铵（TTC）降低后表示为甲藻浓度的微生物活性。结果表明，比糖农场更高的开花植物物种具有较高的开花植物物种，尽管糖类农场的开花植物和花盆的多样性更高。结果表明，在孵育7天孵育后，己嗪酮显着（P <0.05）升高的土壤中的微生物活性增加至172.945ug G-1的高度。孵化。从本研究开始，建议蜜蜂经常访问的植物组成的蜜蜂牧场应留在农场周围生长，以增加在农业生态系统中竖立的洞穴嵌套蜜蜂的浮雕者和蜜蜂酒店结构。应最大限度地减少对农场的农药和综合杂草和害虫管理促进，以增加粉刷者和有益的动物群。

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