| 作物茬口对缓解大豆连作危害效果的研究 |
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| 引用本文： | 薛庆喜. 作物茬口对缓解大豆连作危害效果的研究[J]. 大豆科学, 2010, 29(1) |
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| 作者姓名： | 薛庆喜 |
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| 作者单位： | 黑龙江大学,农业资源与环境学院,黑龙江,哈尔滨,150080 |
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| 基金项目： | 黑龙江省科技攻关资助项目(GA02B716-07-02) |
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| 摘 要： | 研究了苜蓿、玉米和大豆3种茬口对缓解连作大豆危害的效果。结果表明:苜蓿茬连作2 a和3 a大豆产量比玉米茬连作2 a和3 a大豆产量分别增加8.4%、6.6%,比3 a和4 a连作大豆产量分别极显著增加26.7%和27.5%;玉米茬连作2 a和3 a大豆产量比3 a和4 a连作大豆产量分别增加16.9%和19.6%,差异极显著。与3 a连作大豆相比,苜蓿茬和玉米茬连作2 a大豆的株高分别极显著增加19.5 cm和13.8 cm;苜蓿茬的单株粒重比玉米茬和3a连作大豆处理增加3.6 g和4.3 g,差异极显著。与4 a连作大豆相比,苜蓿茬和玉米茬连作3 a大豆的株高分别增加23.7 cm和17.1 cm,差异极显著,苜蓿茬比玉米茬上连作3 a大豆株高显著高6.6 cm;苜蓿茬比玉米茬和4 a连作大豆处理单株粒重增加2.1 g和7.8 g,玉米茬比4 a连作大豆处理单株粒重增加5.7 g,差异均极显著。可见,苜蓿茬口对缓解大豆连作危害优于玉米茬口和大豆茬口。
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| 关 键 词： | 大豆 连作 苜蓿茬 玉米茬 |
Effects of Crop Stubbles on Alleviating the Damages by Continuous Cropping Soybean |
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| XUE Qing-xi. Effects of Crop Stubbles on Alleviating the Damages by Continuous Cropping Soybean[J]. Soybean Science, 2010, 29(1) |
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| Authors: | XUE Qing-xi |
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| Affiliation: | College of Agricultural Resources and Environment Science;Heilongjiang University;Harbin 150080;Heilongjiang;China |
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| Abstract: | Study on crop stubbles to alleviate the damages by continuous cropping soybean was conducted in Longzhen Farm in 2004 and 2005.The experiment was carried out by completely random design with 3 replications.Three treatment of soybean continuous cropping for 2 and 3 years in alfalfa(SCCA),in maize(SCCM)and in soybean stubble(SCCS)were adopted respectively in 2004 and 2005,and each treatment consisted of 5 rows with 10 m length and 65 cm width.The result showed that seed yield of SCCA for 2 and 3 years increas... |
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| Keywords: | Soybean Soybean continuous cropping Alfalfa stubble Maize stubble. |
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