| 夏玉米主栽品种合理密植技术研究 |
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| 引用本文： | 李锁娜,刘国明. 夏玉米主栽品种合理密植技术研究[J]. 江西农业学报, 2012, 24(1): 39-43 |
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| 作者姓名： | 李锁娜 刘国明 |
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| 作者单位： | 1. 江苏联合职业技术学院淮安生物工程分院,江苏淮安,223200
2. 北京市顺义区农业科学研究所,北京顺义,101300 |
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| 摘 要： | 通过田间试验,研究了夏玉米主栽品种京单28和京玉11的合理密植技术。结果表明:与传统的等行距(60 cm)种植方式相比,采用大小行距(40、80㎝)种植方式在高种植密度(7.5万株/hm2)条件下可以显著地增加玉米的产量。在相同种植方式下,随着种植密度的增加,两个品种的株高及穗位高均呈增高的趋势,但单株叶面积、单株干物重、穗粒数和千粒重均呈下降的趋势。
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| 关 键 词： | 夏玉米 种植方式 种植密度 产量 |
Study on Rational High-density Planting Technique of Mainly- cultivated Summer Maize Varieties |
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| Ll Suo-na , LIU Guo-ming. Study on Rational High-density Planting Technique of Mainly- cultivated Summer Maize Varieties[J]. Acta Agriculturae Jiangxi, 2012, 24(1): 39-43 |
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| Authors: | Ll Suo-na LIU Guo-ming |
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| Affiliation: | 1.Huaian Bioengineering Branch,Jiangsu United Professional Technological Institute,Huaian 223200,China;2.Shunyi Institute of Agricultural Sciences in Beijing City,Beijing 101300,China) |
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| Abstract: | The rational high-density planting technique of mainly-cultivated two summer maize varieties(Jingdan 28 and Jingyu 11) was studied through the field tests.The results indicated that: in comparison with the conventional equal row-spacing(60 cm) planting mode,adopting the big-small row-spacing(40,80 cm) planting mode could significantly increase the yield of maize under the condition of high planting density(75000 plants/hm2).Under the condition of the same planting mode,both the plant height and the ear-position height of two maize varieties showed a rising trend when the planting density increased,but the single-plant leaf area,single-plant dry matter weight,grains per ear and kilo-grain weight all revealed a decreasing trend. |
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| Keywords: | Summer maize Planting mode Planting density Yield |
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