| 王英姿;纪明山;祁之秋;谷祖敏;程根武;魏松红;张杨;李兴海.辽宁省大豆田杂草发生与危害[J].植物保护,2007,33(4):116-118. |
| 辽宁省大豆田杂草发生与危害 |
| Occurrence and damage of weeds in soybean fields in Liaoning Province |
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| DOI： |
| 中文关键词: 杂草调查 相对多度 倒置“W”九点取样 危害水平 |
| 英文关键词:weed survey relative abundance inverted W-9 point sampling injury level |
| 基金项目: |
| 王英姿;纪明山;祁之秋;谷祖敏;程根武;魏松红;张杨;李兴海 |
| 沈阳农业大学植物保护学院 沈阳110161 |
| 摘要点击次数: 932 |
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| 中文摘要: |
| 采用倒置"W"九点取样法调查辽宁省大豆田杂草,明确了辽宁省大豆田杂草有19科35种,其中阔叶杂草占74.29%,禾本科杂草占14.29%,其他杂草占25.71%;一年生杂草占54.29%,多年生杂草占31.43%。相对多度达10%以上的杂草依次为藜、鸭跖草、稗草、苘麻、反枝苋、红蓼、马唐、铁苋菜、马齿苋和山苦菜。其中藜和鸭跖草相对多度在30%以上,为辽宁省大豆田杂草优势种群。 |
| 英文摘要: |
| An investigation of weeds in soybean fields was carried out in Liaoning by inverted W-9 point sampling.The results showed that there were 35 weed species belonging to 19 families.Of all species recorded,broadleaved weeds accounted for 74.29%,the grass family for 14.29% and other families for 25.71%.Annual weeds accounted for 54.29% of the total and perennial weeds accounted for 31.43%.The weeds whose relative abundance(RA) > 10% were Chenopodium album L.,Commelina communis L.,Echinochloa crucially,Abutilon theophrasti Medic.,Amaranthus retroflexus L.,Polygonum orientale L.,Digitaria sanguinalis L.Scep.,Acalypha australis L.,Portulaca pleracea L.and Ixeris chinensis Thunb.Nakai..The first two species were the most abundant weeds whose RA > 30%. |
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