[1]苗淑杰,乔云发 　韩晓增.两种形态氮源条件下磷对大豆结瘤固氮的影响*[J].大豆科学,2006,25(03):250-253,258.[doi:10.11861/j.issn.1000-9841.2006.3.0250]
　Miao ShujieQiao YunfaHan Xiaozeng.EFFECTS OF P DEFICINCYON NODULATION AND FUNCTION IN SOYBEANUNDER TWO DIFFERENT N SOURCES[J].Soybean Science,2006,25(03):250-253,258.[doi:10.11861/j.issn.1000-9841.2006.3.0250]
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两种形态氮源条件下磷对大豆结瘤固氮的影响*

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第25卷 期数: 2006年03期 页码: 250-253,258 栏目: 出版日期: 2006-08-25
Title:
EFFECTS OF P DEFICINCYON NODULATION AND FUNCTION IN SOYBEANUNDER TWO DIFFERENT N SOURCES
作者:
苗淑杰 1;  2 　乔云发 1 　韩晓增 1
(1. 中国科学院东北地理与农业生态研究所, 哈尔滨 150040;2. 中国科学院研究生院,北京 100049)
Author(s):
Miao Shujie1; 2　Qiao Yunfa1　Han Xiaozeng1
(1. Northeast Institute of Geography and Agricultural Ecology , CAS , Harbin 150040;2.Graduate College , CAS , Beijing, 100049)
关键词:
磷 ; 氮源 ; 结瘤固氮; 大豆
Keywords:
Phosphorus; Nitrogen ; Nodulation; Soybean
DOI:
10.11861/j.issn.1000-9841.2006.3.0250
文献标志码:
A
摘要:
用营养液培养大豆 7 周 ,研究两种氮源条件下, 磷对大豆结瘤固氮的影响 。在本试验的各取样时期,随营养液中磷水平的增加 ,生物固氮植株的根瘤数增加较多, 尤其是处理后第 6 周,磷对根瘤形成的影响最大。磷对硝态氮处理根瘤数的影响不大, 但本试验条件下, 在 16μmol /L 磷水平,根瘤数较多 。硝态氮处理根瘤数远没有生物固氮处理多,表现出氮素对大豆结瘤的抑制作用 ,导致根瘤固定的氮量减少 。因此,硝态氮植株体内含氮量随磷水平的增加而降低, 而生物固氮植株增加。生物固氮处理根中 N /P 与根瘤数之间存在显著的负相关关系, r =- 0. 5816*,硝态氮处理根中 N /P 与根瘤数之间不相关。
Abstract:
　Soybean, grown in solution culture for 7 weeks, had been used to study the effect of P on nodu-lation under two nitrogen sources. At all harvest time, nodule number of nitrogen fixation increased with Psupply in solution further increased, especially , at 6th week , nodule number reached a maximum. In con-trast , that of nitrate treatment was less than that of nitrogen fixation treatment , but nodule number reach a maximum at 16μmol /L P. These suggested that nitrate inhibited soybean nodula-tion so that nitrogen fixed decreased. Therefore , nitrogen concentration of plant in nitrate treatment de-creased with P further increased, but that of nitrogen fixation is opposite. The ration of N and P in roots ofnitrogen fixation treatment had a significant relationship , r =- 0. 5816*, but that of nitrate treatment wasnot correlated.

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备注/Memo

项目来源:中科院知识创新项目(KZCX1 - SW - 19 - 2)和中科院百人计划项目

作者简介:苗淑杰(1976 -), 女, 中科院在读博士, 主要从事植物营养方面研究。E - mail:miaoshujie@126. com
通讯作者:韩晓增研究员, 电话:0451- 86602940, E - mail:xzhan@cern. ac. cn

更新日期/Last Update: 2016-12-15