[1]章建新,沈融,李宏琪,等.施氮对高产大豆结实性垂直分布的影响[J].大豆科学,2011,30(03):424-427.[doi:10.11861/j.issn.1000-9841.2011.03.0424]
　ZHANG Jian-xin,SHEN Rong,LI Hong-qi,et al.Nitrogen Effects Vertical Distribution of Yield Components of High-yield Soybean[J].Soybean Science,2011,30(03):424-427.[doi:10.11861/j.issn.1000-9841.2011.03.0424]
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施氮对高产大豆结实性垂直分布的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第30卷 期数: 2011年03期 页码: 424-427 栏目: 出版日期: 2011-06-25
Title:
Nitrogen Effects Vertical Distribution of Yield Components of High-yield Soybean
文章编号:
1000-9841(2011)03-0424-04
作者:
章建新; 沈融; 李宏琪; 邵长贺; 苏广禄
新疆农业大学 农学院，新疆 乌鲁木齐 830052
Author(s):
ZHANG Jian-xin;  SHEN Rong;  LI Hong-qi;  SHAO Chang-he;  SU Guang-lu
College of Agronomy， Xinjiang Agricultural University, Urumqi 830000, Xinjiang, China
关键词:
大豆; 施氮量; 荚;  粒; 垂直分布
Keywords:
Soybean;  Nitrogen rate;  Pod;  Seed;  Vertical distribution
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.03.0424
文献标志码:
A
摘要:
以亚有限结荚习性大豆吉育60为材料，在田间研究了4种不同施氮量(0、60、120、180 k·hm-2)对单株荚数、粒数、腔数和结实率垂直分布的影响。结果表明:主茎各节的荚数、总荚腔数、粒数增幅因施氮量而异，适宜施氮量处理（120 k·hm-2）15~19节的荚数、总荚腔数和粒数较不施氮对照增幅明显大于10~14节和5~9节，15~19节、10~14节、5~9节的粒数分别增加6.51、1.39、2.06粒，产量（5 264.87 kg·hm-2）增加20.22%；各处理的荚空腔数在主茎上由多至少顺序为5~9节>10~14节>15~19节，施氮对荚空腔数的分布影响小、对单株总结实率无影响；施氮明显增加5~13节间长度，并增加基部节间粗度。适量氮肥主要提高了大豆群体上部的结荚能力，从而增加总荚腔数和粒数。
Abstract:
Research on the effects of N applications on vertical distribution of soybean [Glycine max(L.) Merr.] yield components is limited. Field trials were conducted to determine the effect of N application rate on pods, seeds and cavities number on main stem of soybean, with semi-determinate soybean‘Jiyu60’as material.Nitrogen was applied to the soil with 0, 60, 120 and 180 k·ha－1 at flowering, respectively. Application of N increased pods, seeds and cavities number at any rate and node position. Appropriate N(120 k·ha－1) significantly increased pods and seeds in 15-19,10-14, 5-9 nodes of main stem, and increased seed yield by 22%compared with control. The cavities number on different part of stem were lower (5-9 node)>middle(10-14)>upper section(15-19 node), application of N had less influence on the distribution of empty pod cavities and had no influence on total seed-setting rate. Nitrogen increased stem diameter of basal node and internode length between 5th and 19th node. Appropriate N enhanced the pod-setting ability of upper section of soybean population, hence, increased total number of cavities and seeds number.

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备注/Memo

基金项目：国家自然科学基金资助项目（31060179）。

第一作者简介：章建新（1962-），男，教授，博士生导师，从事大豆栽培生理研究。E-mail：zjxin401@126.com。

更新日期/Last Update: 2014-09-12