| 不同土壤营养面积对大豆冠层结构的影响 |
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| 引用本文： | 陈渊,韩秉进.不同土壤营养面积对大豆冠层结构的影响[J].农业系统科学与综合研究,2006,22(1):17-20. |
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| 作者姓名： | 陈渊 韩秉进 |
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| 作者单位： | 中国科学院,东北地理与农业生态研究所,黑龙江,哈尔滨,150040 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 应用CI-110植物冠层分析仪,对不同生育时期不同营养面积的大豆群体冠层指标参数叶面积指数(LAI)、平均叶倾角(MLA)、散射光透过系数(TD)、直射光透过系数(TR)和叶分布进行测定。经过分析,不同营养面积所形成的冠层的指标参数是不同的,随着单株营养面积的减少,LAI逐渐增大;平均叶倾角先增大后减少;散射辐射和直射辐射逐渐降低,但是散射辐射始终大于直射辐射;叶片分布密度增大。单株营养面积大,所形成的冠层会给大豆一个宽松的生长环境,有利于产量因素的形成;单株营养面积小,所形成的冠层郁蔽,限制产量因素的形成。图2,表3,参15。
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| 关 键 词： | 大豆 冠层 单株营养面积 产量因素 |
| 文章编号： | 1001-0068（2006）01-0017-04 |
| 收稿时间： | 2005-01-01 |
| 修稿时间： | 2005-11-07 |
Effect of different single plant nutrient area on soybean canopy |
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| CHEN Yuan,HAN Bing-jin.Effect of different single plant nutrient area on soybean canopy[J].System Sciemces and Comprehensive Studies In Agriculture,2006,22(1):17-20. |
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| Authors: | CHEN Yuan HAN Bing-jin |
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| Institution: | Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150040, China |
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| Abstract: | Leaf area index(LAI),mean leaf angle,trans.coefficient for defuse penetration(TD) and radiation penetration(TR) and leaf distribution(LD) were measured by CI-110 digital plant canopy imager system to soybean population differing in single plant nutrient area during growing season.Canopy parameters from soybean population with different single plant nutrient area were different.As single plant nutrient area declined,LAI and LD increased.Although TD and TR decreased,TR was greater than TD.Canopy made up with big single plant nutrient area was facilitated to yield components formation. |
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| Keywords: | soybean canopy single plant nutrient area yield |
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