| 不同形态氮对大豆根瘤生长及固氮的影响 |
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| 引用本文： | 严君,韩晓增,王守宇,王树起,李晓慧.不同形态氮对大豆根瘤生长及固氮的影响[J].大豆科学,2009,28(4). |
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| 作者姓名： | 严君 韩晓增 王守宇 王树起 李晓慧 |
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| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,黑龙江,哈尔滨,150081;东北农业大学农学院,黑龙江,哈尔滨,150030
2. 中国科学院东北地理与农业生态研究所,黑龙江,哈尔滨,150081 |
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| 基金项目： | 国家科技支撑计划资助项目，黑龙江省科技攻关资助项目 |
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| 摘 要： | 采用框栽的培养方法,通过施用不同形态氮肥,探讨不同形态氮对大豆根瘤生长、含氮量、氮积累量以及固氮酶活性的影响.结果表明:不同形态的氮源,对根瘤干重、数量有促进作用,同时增加了根瘤中的含氮量和氮积累量.根瘤干重及数量的变化均为铵态氮(N2)＞蛋白氮(N4)＞硝态氮(N1)＞氨基酸态氮(N3)＞酰胺态氮(N5)＞生物固氮(N0),其中N0处理的根瘤干重、数量最少,而N2处理的根瘤干重和数量最多.根瘤含氮量的变化为N1＞N4＞N5＞N2＞N3＞N0,其中N1处理下的根瘤中的根瘤含氮量最高,N1、N4和N5各处理与N0处理间差异显著(P＜5%).而氮积累的变化为N2＞N4＞N1＞N5＞N3＞N0,各处理与N0处理相比,差异极显著(P＜1%),与含氮量的变化趋势略有不同.添加不同形态的氮源对根瘤固氮酶活性有抑制作用,其变化趋势为N0＞N5＞N3＞N2＞N4＞N1,N0处理的固氮酶活性最高.
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| 关 键 词： | 根瘤 吲氮酶活性 不同形态氮 大豆 |
Effect of Different Forms Nitrogen on Nodule Growth and Nitrogen Fixation in Soybean(Glycine max L.) |
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| YAN Jun,HAN Xiao-zeng,WANG Shou-yu,WANG Shu-qi,LI Xiao-hui.Effect of Different Forms Nitrogen on Nodule Growth and Nitrogen Fixation in Soybean(Glycine max L.)[J].Soybean Science,2009,28(4). |
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| Authors: | YAN Jun HAN Xiao-zeng WANG Shou-yu WANG Shu-qi LI Xiao-hui |
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| Institution: | YAN Jun1,2,HAN Xiao-zeng1,WANG Shou-yu1,WANG Shu-qi1,LI Xiao-hui1(1Northeast Institute of Geography , Agricultural Ecology,Chinese Academy of Sciences,Harbin 150081,Heilongjiang,2 College of Agriculture,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | Nitrogen plays an important role in nitrogen fixation of soybean.In this paper,a pot culture experiment was carried out to study the effects of different forms nitrogen on the variation of dry weight(DW),number,nitrogen content,nitrogen accumulation and nitrogenase activity in nodule of soybean(Glycine max L.) at flowering stage.The results showed that different forms nitrogen promoted nodule formation and growth,which embodied in dry weight and number significantly increased compared with biological nitrog... |
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| Keywords: | Nodule Nitrogenase activity Different forms nitrogen Soybean |
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