| 摘要: |
| 按照气候、海拔、土壤和作物布局,将甘肃省分为陇南、陇东、中部、河西和岷洮等5个自然分区。调查到农田常见杂草108种,其中禾本科占18. 52%,菊科占13. 89%,十字花科、藜科和唇形科各占6. 48%,蓼科和豆科均占5. 56%.且确定了冬小麦、春小麦、春玉米、马铃薯、豆类、棉花和蔬菜等主要栽培作物—杂草群落。 |
| 关键词: 农田杂草，杂草种类，杂草群落，甘肃省 |
| DOI： |
| 分类号:S451 |
| 基金项目:甘肃省农田杂草调查与化学防除研究项目 |
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| Species and Community Composition of Common Farmland Weeds in Gansu Province |
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Chen Lin Diao Shaodong Gu Mingjie Sun Xingwen,Chen Lin Diao Shaodong Gu Mingjie Sun Xingwen,Chen Lin Diao Shaodong Gu Mingjie Sun Xingwen
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| Abstract: |
| Gansu Province can be divided into five natural regions of south,east,central,west of Gansu and Ming-Lintao area,according to the climate,elevation,soil type and crop distribution.In the investigation,108 species of common weeds in farmland have been collected including Gramineae,Compositae,Cruciferae,Chenopodiaceae,Lanbiatae,Polygonaceae and Leguminosea with the constitutions of 18.52%,13.89%,6.48%,6.48%,5.56% and 5.56% respectively.Comminity compositions of winter wheat,spring wheat,spring maize,potato,bean,cotton,vegetable and the weeds have been determined,which provides a scientific basis for chemical control of the weeds. |
| Key words: farmland weeds,weed species,weed community,Gansu Province |
