| 摘要: |
| 对甘肃陇南、陇东、中部、河西和岷洮5个不同生态农田中野燕麦、狗尾草、藜、播娘蒿、繁缕、荠菜、猪殃殃、艹扁蓄、卷茎蓼、麦瓶草、细穗密花香薷、大巢菜、灰绿藜、马齿苋等14种常见杂草的出苗期及发生特点观测。分析表明：冬麦区选择茎叶处理，防除适期为翌年4月中下旬；春麦区选择茎叶处理和土壤处理均可，适期为4月中下旬至5月上旬。 |
| 关键词: 农田，杂草，发生特点，化学防除 |
| DOI： |
| 分类号:S451 |
| 基金项目:甘肃农田杂草调查与化学防除研究资助 |
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| Occurrance Characteristics of Common Weeds in Farmland in Gansu |
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| Abstract: |
| In this paper, the emergence and occurrence characteristics of 14 common
weeds in field were investigated.The weeds included Avena fatua L.,Setaria viridis L.
Beauv.,Chenopodium album L.,Descarainia sophia(L. ) Webbex Prantl,Stellaria media (L. ) cyr.,Capsella bursa-Pastoris Medic.,Galium aparinevar.tenernm (Gren.et Godr. )
Rcbb.,Polygonum aviculare L.,P.convolvulus L.,Silene conoidea L.,Eisholtzia densa var.ianthina/i> (Maxim ex kanitz) Wu C Y et Huang S C,Vicia sativa L.,Chenopodium glaucum L,Portulaca oleracea L. etc. |
| Key words: farmland,weeds,occurrence characteristics,chemical eradication |
