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中国农学通报 ›› 2017, Vol. 33 ›› Issue (11): 126-130.doi: 10.11924/j.issn.1000-6850.casb16060052

• 植物保护 农药 • 上一篇    下一篇

拉萨市青稞田杂草发生情况调查

宋国英   

  1. (西藏自治区农业资源与环境研究所,拉萨 850032)
  • 收稿日期:2016-06-11 修回日期:2017-03-21 接受日期:2016-08-03 出版日期:2017-04-26 发布日期:2017-04-26
  • 通讯作者: 宋国英
  • 基金资助:
    西藏自治区自然基金项目“西藏拉萨市青稞田杂草发生规律研究”(14-36)。

Investigation on Weed Occurrence in Highland Barley Field in Lhasa

Song Guoying   

  1. (The Research Institute of Agricultural Resources and Environment in Tibet Autonomous Region, Lhasa 850032)
  • Received:2016-06-11 Revised:2017-03-21 Accepted:2016-08-03 Online:2017-04-26 Published:2017-04-26

摘要: 采集拉萨市4个县13个乡的青稞田土样,通过室内诱萌方法,研究青稞田杂草的发生情况。结果表明:拉萨市青稞田常见杂草分属于12个科,26个种,多为一年生杂草。主要危害杂草为禾本科杂草,有早熟禾、狗尾草、无芒稗等;从土壤分层培养结果来看,表现为:0~10 cm土层杂草出苗量要高于10~20 cm土层杂草出苗量。该研究将为拉萨市青稞田的杂草有效防治提供科学依据。

关键词: 日光温室, 日光温室, 极端气温, 预报模型

Abstract: Induced budding in a greenhouse to soil samples collected from barley field of four counties including13 townships in Lhasa, investigated on weed occurrence in barley field. The results show: there are 12 families, 25 kinds in barley field, mostly annual weed; the main harmful weeds is gramineous weeds, such as Poa annua L., Setaria viridis L., Echinochloa crusgalli L and so on; layered soil cultivation shows: weed emergence amount of 0 to 10 cm soil is higher than 10-20 cm. The study will provide a scientific basis for effective prevention and control weeds in barley field in Lhasa, Tibet.