常德地区茄果类蔬菜田间杂草种类、分布及危害

摘要

对常德地区茄果类蔬菜田间杂草种类、分布及危害特点进行研究,结果表明,该地区现有茄果类蔬菜田间杂草16科38种,以禾本科、菊科、石竹科、蓼科、玄参科、莎草科、十字花科等为优势科,其中优势种有菵草（Beck-mannia syzigachne）、马唐（Digitaria sanguinalis）、莎草（Cyperus rotundus）、卷耳（Cerastium arvense）、马齿苋（Portulaca oleracea）、水花生（Alternanthera philoxeroidea）、铁苋菜（Acalypha australis）、通泉草（Mazus japonicusxo）、丁香蓼（Ludwigia prostrata）、早熟禾（Poa annaua）等。并对盖有地膜和未盖地膜的茄果类蔬菜田间杂草种类、分布及危害特点进行了综合分析,为常德地区茄果类蔬菜田间杂草的综合防除提供了重要资料。%A field survey was conducted to investigate the weed species and their distribution and harmful ness of vegetables field of eggplant in the Changde areas. This study indicated that the weeds of vegetables field of eggplant were 38 species, belonging to 16 families, in which Gramineae, Compositae, Caryophyl- laceae, Polygonaceae, Scrophulariaceae, Cyperaceae and Cruciferae were dominant families. The dominant species included Beckmannia syzigachne , Digitaria sanguinalis , Cyperus rotundus , Cerastiwm arvense , Portulaca oleracea , Alternanthera philoxeroides , Acalypha australis , Mazus ja trata, Poa annua. This study also comprehensively harmfulness in vegetable field with plastic film to tho provide the important information for control weeds comp se in ared veget of vegetab the weed able field le field of specms ponicus , and their Ludwigia pros distri without plastic film, w eggplants. bution and hich would