Mechanisms of weed suppression in cover crop-based production systems
Mechanisms of weed suppression in cover crop-based production systems
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DOI：
10.21273/hortsci.31.3.410
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发表时间：
1996-06-01
期刊：
影响因子：
1.9
通讯作者：
Regnier, EE
中科院分区：
文献类型：
--
作者：
Creamer, NG;Bennett, MA;Regnier, EE
通过田间试验和室内试验，研究了覆盖作物抑制杂草的机理。高效液相色谱分析和种子萌发生物测定表明，黑麦（Secale cereale L.）可将其化感物质沥滤出来，再干燥，并用作惰性对照，用于将物理抑制与其他类型的干扰分离。在一项实地研究中，黑麦，深红色丁香（三叶草），毛野豌豆（Vicia villosa Roth），大麦（Hordeum vulgare L.），四种植物的混合物抑制了东部黑龙葵（Solanum ptyphalum Dun.）的出现，Crimson三叶草抑制了东方龙葵的出现，这超出了物理抑制的范围。Beauv.]的抑制黑麦和大麦，但不是由其他覆盖作物或覆盖作物混合物。
Field and laboratory studies were conducted to investigate the mechanisms of weed suppression by cover crops. High-performance liquid chromatograph analysis and a seed germination bioassay demonstrated that rye (Secale cereale L.) can be leached of its allelochemicals, redried, and used as an inert control for separating physical suppression front other types of interference. In a field study, rye, crimson cloves (Trifolium incarnatum L.), hairy vetch (Vicia villosa Roth), barley (Hordeum vulgare L.), and a mixture of the four species suppressed the emergence of eastern black nightshade (Solanum ptycanthum Dun.), Crimson clover inhibited the emergence of eastern black nightshade beyond what could be attributed to physical suppression atone, The emergence of yellow foxtail [Setaria glauca (L.) Beauv.] was inhibited by rye and barley but not by the other cover crops or the cover crop mixture.