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大豆科学  2009 

大豆垄上三行窄沟密植栽培群体生理研究

DOI: 10.11861/j.issn.1000-9841.2009.01.0081, PP. 81-84

Keywords: 垄上三行,大豆,密度,群体生理

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Abstract:

为探讨垄上三行窄沟密植栽培对大豆群体生理的影响,选择垦丰16为材料,在4个密度(分别为30×104、33×104、36×104、39×104株hm-2)栽培条件下,测定了大豆株高、叶面积指数、光合势、单株干物质积累及产量指标。结果表明:株高和叶面积指数随密度的增加而增加,出苗后66d株高达最高;而单株干物质积累随密度的增加而降低;在鼓粒期各处理光合势均达最高。结果显示:单株籽粒重随密度的增加而降低,而群体产量随密度的增加呈先增加后降低的趋势,密度为36×104株hm-2下,产量最高(4364kghm-2)

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