[1]严君,等.不同形态氮肥对大豆根系形态及磷效率的影响[J].大豆科学,2010,29(06):1003-1007.[doi:10.11861/j.issn.1000-9841.2010.06.1003]
　YAN Jun,HAN Xiao-zeng,et al.Effects of Nitrogen Forms on Root Morphology and Phosphorous Efficiency in Soybean (Glycine max L.)[J].Soybean Science,2010,29(06):1003-1007.[doi:10.11861/j.issn.1000-9841.2010.06.1003]
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不同形态氮肥对大豆根系形态及磷效率的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第29卷 期数: 2010年06期 页码: 1003-1007 栏目: 出版日期: 2010-12-25
Title:
Effects of Nitrogen Forms on Root Morphology and Phosphorous Efficiency in Soybean (Glycine max L.)
文章编号:
1000-9841（2010）06-1003-05
作者:
严君1;  2; 韩晓增1; 祖伟1
1.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，黑土区农业生态院重点实验室，黑龙江 哈尔滨 150081
Author(s):
YAN Jun1;  2;  HAN Xiao-zeng1;  ZU Wei1
1.College of Agriculture, Northeast Agricultural University, Harbin 150030;
2.Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, Heilongjiang， China
关键词:
根系形态; 磷效率; 氮素; 大豆
Keywords:
Root morphology; Efficiency of P; Nitrogen; Soybean
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.06.1003
文献标志码:
A
摘要:
采用框栽试验方法，研究生物固氮（CK），NO-3-N，NH+4-N，Glycin-N，Protein-N和Urea-N 6种不同形态氮素对大豆各生育时期根系生物量、根冠比、根系形态及磷效率的影响。结果表明：不同形态N处理对大豆根系生物量、根系形态特征（根长、根体积、根表面积及根尖数等）及磷吸收、利用效率影响不同，随着生育期的推进，NO-3-N和Protein-N均显著高于其它处理，但二者之间差异不显著；Glycin-N，Urea-N和NH+-N均高于CK（生物固氮），但Glycin-N、Urea-N和NH+4-N处理间差异不显著。不同形态N处理的根干重、根长、根体积、根表面积均高于CK，而根冠比、平均直径以及磷利用效率则低于CK。
Abstract:
Nitrogen plays an important role in root morphology and efficiency of phosphorous in soybean. In this paper, a pot culture experiment was carried out to study the effects of different forms N(including N2, NO-3-N, NH+4-N, Glycin-N, Protein-N and Urea-N) on the variation of dry weight (DW), root to shoot ratio (R/S), root morphology and efficiency of P in soybean (Glycine max L.). The results showed that the impacts of nitrogen forms on soybean root growth, root morphology, efficiency of P absorption and utilization were different, for example, efficiency of P absorption in NO-3-N and Protein-N treatment was higher than that in other N treatments with soybean growth stages, while no significant difference was found between NO-3-N and Protein-N treatment, moreover, efficiency of P absorption in Glycin-N, Urea-N andNH+4-N treatment was higher than that in CK(biological nitrogen fixation), however, no significant difference was found among these three treatments, the similar trend appeared in root DW, root length, root surface area, root volume, and so on. But the reverse condition was showed in R/S, root average diameter and efficiency of P utilization.

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备注/Memo

基金项目：国家重点基础研究发展计划(2005CB121106)资助项目；国家科技支撑计划 (2006BAD21B01，2006BAD05B05) 资助项目。

第一作者简介：严君（1982-），女，博士，主要从事大豆营养调控方面的研究。E-mail: yanjun985625@163.com。
通讯作者：韩晓增，研究员，博士生导师。E-mail: xzhan@neigaehrb.ac.cn。

更新日期/Last Update: 2014-09-15