| 土层深度对三种麦田禾本科杂草出苗及生长的影响 |
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| 引用本文：高兴祥,李尚友,李美,李恩福,李健,房锋.土层深度对三种麦田禾本科杂草出苗及生长的影响.植物保护学报,2019,46(5):1132-1137 |
| DOI：10.13802/j.cnki.zwbhxb.2019.2018086 |
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| 中文摘要:为明确小麦田禾本科杂草在不同土层深度的出苗及生长情况，选取雀麦Bromus japonicas、节节麦Aegilops tauschii和野燕麦Avena fatua三种小麦田常见禾本科杂草，采用盆栽法系统研究不同土层深度对杂草出苗及生长的影响。结果表明，小麦田禾本科杂草雀麦、节节麦和野燕麦出苗和生长与不同土层深度密切相关，在浅土层中均有较好的出苗率，且后期生长也正常。从出苗时间来看，雀麦和野燕麦集中出苗时间在播种后5~11 d，节节麦略晚于这2种杂草；从最适出苗土层深度来看，雀麦最适出苗土层深度为0.5~3.5 cm，出苗率在76.0%~87.0%之间，节节麦的最适出苗深度为0.5~8.0 cm，出苗率在66.7%~79.3%之间，而野燕麦的最适土层深度为0.5~18.0 cm，出苗率达84.2%~94.4%；从出苗后生长影响来看，0~20 cm土层对野燕麦后期生长没有显著影响，土层深度大于10.0 cm对节节麦生长有显著抑制作用，大于6.0 cm即对雀麦有显著影响。研究表明通过深翻土地可以对雀麦和节节麦达到一定的控制作用，但对野燕麦控制效果相对略差。 |
| 中文关键词:土层深度 禾本科杂草 出苗及生长 麦田杂草 |
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| Effects of soil depths on seedling emergence and growth of three gramineous weeds in wheat fields |
| Author Name | Affiliation | E-mail | | Gao Xingxiang | Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China | | | Li Shangyou | Huangshanpu Town Agricultural Comprehensive Service Center, Yishui County, Yishui 276400, Shandong Province, China | | | Li Mei | Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China | limei9909@163.com | | Li Enfu | Shagou Town Agricultural Comprehensive Service Center, Yishui County, Yishui 276400, Shandong Province, China | | | Li Jian | Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China | | | Fang Feng | Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China | |
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| Abstract:To clarify the effects of different soil depths on the emergence and growth of grass weeds in wheat fields, three weeds, Bromus japonicus, Aegilops tauschii and Avena fatua, were studied in greenhouses. The seedling emergence and growth of these weeds were closely related to the soil depth. These weeds showed good seedling emergence in the shallow soil layer and the late growth was normal. The seedling emergence of B. japonicus and A. fatua occurred 5-11 days after sowing, and A. tauschii emerged later than B. japonicus and A. fatua. The best seedling soil depth of B. japonicus, A. tauschii and A. fatua were 0.5-3.5, 0.5-8.0 and 0.5-18.0 cm, respectively, and the emergence rates were 76.0%-87.0%, 66.7%-79.3% and 84.2%-94.4%, respectively. There was no significant effect on seedling emergence of A. fatua at 0-20 cm soil depths, but there were inhibitory effects on seedling emergence of A. tauschii and B. japonicus in more than 10.0 cm or 6.0 cm soil depths, respectively. The results indicated that deep ploughing could control A. tauschii and B. japonicus to a certain extent, but the control effect on A. fatua was relatively insignificant. |
| keywords:soil depth grass weed emergence and growth wheat weed |
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