| 施氮水平对大豆光合作用及产量的影响 |
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| 引用本文： | 王晓伟,闫超,万涛,马春梅,龚振平,董守坤.施氮水平对大豆光合作用及产量的影响[J].作物杂志,2011(2):49-52. |
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| 作者姓名： | 王晓伟 闫超 万涛 马春梅 龚振平 董守坤 |
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| 作者单位： | 1. 东北农业大学农学院,150030,黑龙江哈尔滨
2. 国家大豆工程技术研究中心,150030,黑龙江哈尔滨 |
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| 基金项目： | 黑龙江省科技攻关项目，黑龙江省博士后基金 |
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| 摘 要： | 以绥农14为材料,采用砂培盆栽和测定整株光合作用的方法,研究了施氮水平对大豆光合作用及产量的影响。结果表明,大豆植株CO2吸收速率、光合速率和叶面积大小均随生育时间呈现先升高后降低的单峰曲线变化趋势,高、中氮处理(N135、N90)大豆苗期CO2吸收速率明显高于其他处理,但高氮处理(N135)大豆中后期的CO2吸收速率较低;中氮处理(N90)可以使大豆植株对CO2较高的吸收水平维持到中期;低氮处理(N45)大豆后期CO2吸收速率升高;不施氮处理(N0)大豆前期CO2吸收速率最低,后期维持一般水平。随施氮量增加,明显促进了大豆苗期光合速率的提高,不施氮处理在大豆生育中后期(56～73d)有利于光合速率的提高,施入一定氮(N45)更有利于保持大豆后期较高的光合速率。施氮能促进大豆植株前期叶片的生长,使其在整个生育期内都有较大的叶面积;大豆产量随施氮水平增加呈单峰曲线变化趋势,适度施氮有利于产量的提高。
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| 关 键 词： | 大豆 CO2吸收速率 光合速率 叶面积 产量 |
Effects of Nitrogen Application on Yield and Photosynthesis in Soybean |
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| Wang Xiaowei,Yan Chao,Wan Tao,Ma Chunmei,Gong Zhenping,Dong Shoukun.Effects of Nitrogen Application on Yield and Photosynthesis in Soybean[J].Crops,2011(2):49-52. |
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| Authors: | Wang Xiaowei Yan Chao Wan Tao Ma Chunmei Gong Zhenping Dong Shoukun |
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| Institution: | Wang Xiaowei1,Yan Chao1,Wan Tao1,Ma Chunmei1,Gong Zhenping2,Dong Shoukun1(1College of Agriculture,Northeast Agricultural University,Harbin 150030,Heilongjiang,2the National Research Center of Soybean Engineering and Technology,China) |
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| Abstract: | Sand culture was used to determine photosynthesis of the whole plant with SN14,and to study the effect of nitrogen levels on yield and photosynthesis.The results showed that the CO2 absorption rate,photosynthetic rate and leaf area showed a single peak curve,which increased earlier then decreased later.The CO2 absorption rate of N135 and N90 treatments were obviously higher than the other treatments during the seedling period,then became lower for N135 treatment during middle and later stages,but kept high ... |
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| Keywords: | Soybean CO2 absorption rate Photosynthetic rate Leaf area Yield |
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