| 兰州地区麦田主要杂草的发生与危害 |
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| 引用本文： | 王允华,王健. 兰州地区麦田主要杂草的发生与危害[J]. 甘肃科学学报, 1991, 0(4) |
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| 作者姓名： | 王允华 王健 |
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| 作者单位： | 兰州市植保站，兰州市农科所 兰州 730000，兰州 730000 |
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| 摘 要： | 1988～1990年,笔者用五级目测草害调查法调查了兰州地区麦田杂草的发生与危害情况。兰州地区麦田杂革共31科172种。藜(Chenopodium album L.)、野燕麦(Avenafatua L.)、荞麦蔓(Polygonum convolvulus L.)、猪秧秧(Galium aparine L.)、日本天剑(Calystegia japonica Choisy)、苣荬菜(Sonchus brachyotus DC.)为优势种杂草,它们的发生面积大,密度高,危害重。区域性主要杂革有12种,也是化学防除的重点。
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| 关 键 词： | 杂草 分布 危害 |
DISTRIBUTION AND DAMAGE OF WHEAT FIELD WEEDS IN LANZHOU DISTRICT |
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| Wang Youghua. DISTRIBUTION AND DAMAGE OF WHEAT FIELD WEEDS IN LANZHOU DISTRICT[J]. Journal of Gansu Sciences, 1991, 0(4) |
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| Authors: | Wang Youghua |
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| Abstract: | Distribution and damage of wheat field weeds in Lanzhou district were studied by the rating method with five scales during 1988-1990. There are 172 weed species which belong to 31 families in wheat fields of Lanzhou. Chenopodium album L , Avena fatua L. Polygonum convolvulus L. Galium aparine L. Calystegia japonica Choisy , Sochus brachyotus D. C, are dominant weed species. They grow over large areas, in high intensity, and cause great damages. The regional, dominant weeds are of 12 species. They are also main points for chemical control. |
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| Keywords: | Weed distribution damage. |
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