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大豆科学  2015 

密度及行距对不同大豆品种农艺性状及产量的影响

DOI: 10.11861/j.issn.1000-9841.2015.01.0052, PP. 52-55

Keywords: 大豆,密度,行距,农艺性状,产量

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Abstract:

田间条件下,以3个亚有限结荚习性大豆品种铁丰31、铁豆63和沈农12为试材,采用再裂区设计,考察不同密度及行距处理对不同大豆品种农艺性状及产量的影响。结果表明:缩小行距可以提高3个大豆品种的株高;增加密度,3个大豆品种的主茎节数、分枝数、单株荚数和单株粒重减少,结荚高度提高;不同行距处理条件下,大豆产量差异达到了极显著水平(P<0.01),行距为30cm时,大豆产量最高;密度为25万株?hm-2?,行距30cm时,3个大豆品种产量最高,铁丰31、沈农12和铁豆63的产量分别为4961.2,3840.0和3539.1kg?hm-2。

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