| 烟单14号玉米产量构成模型及提高产量途径分析 |
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| 引用本文： | 李淑霞,冯瑞龙,赵继业,刘绍棣,程绍义.烟单14号玉米产量构成模型及提高产量途径分析[J].中国海洋大学学报(自然科学版),1988(Z2). |
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| 作者姓名： | 李淑霞 冯瑞龙 赵继业 刘绍棣 程绍义 |
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| 作者单位： | 青岛海洋大学
(李淑霞，冯瑞龙，赵继业)，莱阳农学院
(刘绍棣)，莱阳农学院(程绍义) |
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| 摘 要： | 根据1984—1986年烟单14号玉米田间试验的大量数据,作者在引进弹性系数概念后,建立了烟单14号夏玉米产量的非线性模型: Q=Ay~α_1y~β_2y~γ_3e~ε通过对模型中弹性系数的统计分析,提出大面积烟单14号玉米不同产量水平增产的途径,低产水平区(<250公斤/亩),着重提高亩穗数:中产水平区(250—400公斤/亩),在一定亩穗数的基础上,着重提高穗粒数;高产水平区(>400公斤/亩),提高粒重对产量的增产效益较大。
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| 关 键 词： | 夏玉米 产量 模型 弹性系数 |
THE YIELD MODEL OF SUMMER CORN AND APPROACHES TO THE INCREASE OF CORN YIELD |
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| Li Shuxia Feng Ruilong Zhao Jiye.THE YIELD MODEL OF SUMMER CORN AND APPROACHES TO THE INCREASE OF CORN YIELD[J].Periodical of Ocean University of China,1988(Z2). |
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| Authors: | Li Shuxia Feng Ruilong Zhao Jiye |
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| Institution: | Li Shuxia Feng Ruilong Zhao Jiye(Ocean University of Qingdao)Liu Shaodi Cheng Shaoyi(Agricultural College of Laiyang) |
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| Abstract: | In this paper the concept of elasticity coefficient is introduced and the nonlinear yield model for the summer corn Yan Dan 14 is established on the basis of an amount of field experiment data from 1984 to 1986. Through the statistical analysis of the elasticity coefficients of the model, it has been discovered that different main approaches should be taken for different yield levels to increase the yield per mu: increasing the number of spikes per mu for low levels of yield (<250 kg per mu); increasing the number of grams per spike for intermediate levels of yield (250-400 kg per mu); and increasing the grain weight for high levels of yield (>400 kg per mu). |
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| Keywords: | Summer Corn yield model elasticity coefficient |
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