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杂草多样性
释义
杂草多样性
Encyclopedia
农学
杂草多样性
释
Weed diversity
杂草多样性
杂草与环境形成的生态复合体以及与此相关的各种生态过程的总和。包括杂草所拥有的基因以及它们与其生存环境形成的复合生态系统。此处的杂草是指违背人们的栽培目的,出现在栽培场所又不是栽培对象的植物;此处的环境包括地形地貌、土壤类型及酸碱度、土壤肥力、轮作和种植制度、土壤耕作、气候(水分、光照、温度)和作物种类等各种因子。
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sign of addition
sign of aggregation
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sign of integration
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sign of sexual communication
sign of subtraction
sign of the Devil
sign of the membership relation
sign of union
signomial programming
Signoria Plaza, Florence, Italy
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sign representation
signs of zodiac
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Signs:Journal of Women in Culture and Society
sign test
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