| 钾肥对大豆生理特性及其产量和品质的影响 |
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| 引用本文： | 牟忠生,吴春胜,李楠.钾肥对大豆生理特性及其产量和品质的影响[J].吉林农业科学,2011,36(3). |
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| 作者姓名： | 牟忠生 吴春胜 李楠 |
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| 作者单位： | 1. 吉林省农业科学院,长春,130033
2. 吉林农业大学,长春,130118 |
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| 摘 要： | 以长农18为试验材料,在田间栽培的条件下,研究了不同施钾量对大豆生理特性及其产量和品质的影响。试验结果表明,全生育期内,叶绿素含量变化均呈现先升高后降低的趋势,光合速率呈现双峰曲线变化,出现了两次光合高峰值,单株干物质积累量呈"S"形曲线的变化,在R7期达到最大值。施钾使大豆叶片的叶绿素含量和光合速率增加,同时施钾也使叶面积指数、干物质积累量加大,株高、百粒重和产量提高,但过量的钾肥又使其降低。
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| 关 键 词： | 大豆 生理特性 产量 品质 影响 |
Effects of Potassium Rate on Physiological Characteristics,Yield and Quality of Soybean |
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| MU Zhong-sheng,WU Chun-sheng,LI Nan.Effects of Potassium Rate on Physiological Characteristics,Yield and Quality of Soybean[J].Jilin Agricultural Sciences,2011,36(3). |
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| Authors: | MU Zhong-sheng WU Chun-sheng LI Nan |
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| Institution: | MU Zhong-sheng1,WU Chun-sheng2,LI Nan1(1.Academy of Agricultural Sciences of Jilin Province,Changchun 130033,2.Jilin Agricultural University,Changchun 130118,China) |
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| Abstract: | Soybean cultivar 'Changnong 18' was used as material in the field test.Effects of potassium rate on physiological characteristics,yield and quality of soybean were studied.The result showed that in the whole growth period,chlorophyll content showed a decreasing trend after the first increase.Photosynthetic rate showed double-peak curve and there were two peaks.Dry matter per plant changed as S-shaped curve,and it reached the maximum in the R7 stage.Chlorophyll content and photosynthesis rate of the soybean ... |
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| Keywords: | Soybean Physiological characteristics Yield Quality Effect |
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