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保护作物
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保护作物
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农学
保护作物
释
nurse crop
保护作物
在建植人工草地时,为抑制田间杂草生长,保护多年生牧草幼苗生长而同期播种的苗期生长快、与杂草竞争力强、生长期短、再生能力弱的作物。又称伴播作物(companion crop)。
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theory of ominant structural plane
theory of open and peaceful mind
theory of opera conception
theory of opera imagery
theory of opera real-virtual interplay
theory of operators
theory of optical activity
theory of ordinals
theory of ordinary representations
theory of organic decentralization
theory of organizations
theory of original evil of human nature
theory of original goodness of human nature
theory of origin of species
theory of oscillations
Theory of Painting
theory of pangenesis
theory of parental investment
theory of participation
theory of partitions
theory of party organ newspaper
theory of penalty deterrence
theory of perceived ability
theory of periodic solution
theory of personality
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