| 高密度种植对夏玉米产量性状的影响 |
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| 引用本文： | 靳巧玲,王俊岭,李志辉,曹燕燕.高密度种植对夏玉米产量性状的影响[J].河北农业科学,2010,14(7):5-6,19. |
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| 作者姓名： | 靳巧玲 王俊岭 李志辉 曹燕燕 |
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| 作者单位： | 河南省漯河市农科院,河南,漯河,462300 |
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| 摘 要： | 以优良密植型玉米新品种郑单958为试材,设种植密度75 000株/hm^2、90 000株/hm^2、105 000株/hm^2和120 000株/hm^24个水平,在不同生育时期内,调查植株的干物质积累、单株及群体成产性状、穗部性状和籽粒干物质积累情况。结果表明：栽培密度对玉米生长及产量有明显影响。高密度栽培时,种植密度超过一定群体后,群体对单株的影响由最大值逐渐减少;低于此密度后也是如此。在高密度栽培中,郑单958种植密度的临界值为90 000株/hm^2。
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| 关 键 词： | 高密度栽培 夏玉米 产量性状 产量 |
Effects of High Planting Density of the Yield of Summer Maize |
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| JIN Qiao-ling,WANG Jun-ling,LI Zhi-hui,CAO Yan-yan.Effects of High Planting Density of the Yield of Summer Maize[J].Journal of Hebei Agricultural Sciences,2010,14(7):5-6,19. |
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| Authors: | JIN Qiao-ling WANG Jun-ling LI Zhi-hui CAO Yan-yan |
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| Institution: | (Luohe Academy of Agricultural Sciences,Luohe 462300,China) |
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| Abstract: | The new summer maize variety Zhengdan 958 was planted at the density of 75 000 plants/hm^2,90 000 plants/hm^2,105 000 plants/hm^2 and 120 000 plants/hm^2,respectively.The effects of planting density on the dry matter accumulation,yield traits of single plant and population,ear characters,and dry matter accumulation in seed were studied.The results showed that the effects of planting density on the growth and yield of summer maize were obvious.Under high density,the effect of population on single plant gradually decreased when the planting density exceeded a certain population.The critical value was 90 000 plants/hm^2. |
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| Keywords: | High density cultivation Summer maize Yield traits Yield |
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