| 大豆不同密度对群体结构的影响 |
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| 引用本文： | 王晓梅,房正.大豆不同密度对群体结构的影响[J].吉林农业科学,1996(4):39-42. |
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| 作者姓名： | 王晓梅 房正 |
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| 作者单位： | [1]吉林省农业学校 [2]吉林市欢喜乡农业站 |
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| 摘 要： | 本试验研究了大豆３种不同密度下，株高、叶面积指数、净同化率变化规律。研究结果表明：亚有限结实习性大豆品种成熟期最适株高９０－９５ｃｍ，结荚初期最适叶面积指数为４－４．５，稳定时间４０～４５ｄ，净同化率两次高峰期应在开花盛期和鼓粒期，分别为１２～１４ｇ／ｍ２．ｄ和７～７．５ｇ／ｍ２·ｄ，适宜密度为２０万株／ｈｍ２。从中掌握大豆各个时期的丰产长相。
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| 关 键 词： | 大豆 不同密度 群体结构 |
The Effect of Different Densities on Population Structure in Soybean |
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| Abstract: | In order to research of the law of change of plant height,leaf area index(LAI)and net assimilation rate(NAR),the semi-determinate soybean cultivars were compared in different density.The results showed the optimum plant density was 2000 000 plant/hm2,plant height was 90-95cm on maturing,leaf area index of soybean population was 4￣4.5 on pod bearing,continuing 45 day, and high net assimilation rate were 12￣14g/m2·d on flowering and 7￣7. 5g/m2·d on pob filling. |
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| Keywords: | Soybean Different densities Population sturcture |
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