[1]赵晶,孙磊,罗盛国,等.氮密交互对大豆钾吸收的影响[J].大豆科学,2014,33(06):865-869.[doi:10.11861/j.issn.1000-9841.2014.06.0865]
　ZHAO Jing,SUN Lei,LUO Sheng-guo,et al.Effects of N and Density Interaction on K Absorption of Soybean Plants[J].Soybean Science,2014,33(06):865-869.[doi:10.11861/j.issn.1000-9841.2014.06.0865]
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氮密交互对大豆钾吸收的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第33卷 期数: 2014年06期 页码: 865-869 栏目: 出版日期: 2014-12-25
Title:
Effects of N and Density Interaction on K Absorption of Soybean Plants
文章编号:
1000-9841.2014.06.0865
作者:
赵晶; 孙磊; 罗盛国; 张明聪; 孙文相; 吴琼; 赵广欣; 刘元英
东北农业大学 资源与环境学院，黑龙江 哈尔滨 150030
Author(s):
ZHAO Jing; SUN Lei; LUO Sheng-guo; ZHANG Ming-cong; SUN Wen-xiang; WU Qiong; ZHAO Guang-xin; LIU Yuan-ying
College of Resources and Environmental Science，Northeast Agricultural University，Harbin 150030，China
关键词:
大豆; 氮密交互; 钾积累; 产量
Keywords:
Soybean; N and density interaction; K accumulation; Yield
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.06.0865
文献标志码:
A
摘要:
以东农52大豆品种为材料，采用裂区设计，在施用等量氮(纯氮 60 kg.hm-2)条件下，设置2种氮肥施用方式（N1：氮肥作为基肥一次性施用；N2：启动N 18 kg.hm-2作为基肥+N 42 kg.hm-2?R4期追施）和3种种植密度（D1：20万株.hm-2；D2：25万株.hm-2；D3：30万株.hm-2），研究了氮密交互对大豆各器官钾积累及产量的影响。结果表明：R5期以后各器官钾积累总体上表现为：同一密度条件下，启动氮加追氮处理钾积累高于氮肥作基肥一次施用处理；同一氮肥施用方式下，随着密度增加，钾积累逐渐增加。在R6期，除叶柄外D2N2和D3N2处理各器官与D1N1处理钾积累差异均达到了显著水平。收获期籽粒中，D2N2和D3N2处理钾积累比D1N1处理分别高24.9%和23.5%（P<0.05）。D2N2处理产量最高，达到了3.96t..hm-2，较其他处理增产10.6%～36.6%（P<0.05）。
Abstract:
In order to study the effects of N and density interaction on K accumulation in different soybean organs and yield,a field experiment was conducted with soybean cultivar Dongnong 52,using a split-plot design with two N application patterns(a single application of N 60 kg.ha-1?as basal fertilizer;starter-N 18 kg.ha-1as basal fertilizer followed by N 42 kg.ha-1as topdressing at R4 stage)and three densities(200 thousand plants.ha-1,250 thousand plants.ha-1and 300 thousand plants.ha-1).The results showed that after R5 stage，K accumulation in soybean organs of starter-N plus topdressing N was higher than using N as basal fertilizer under the same density.With the density increasing,K accumulation in soybean organs increased under the same N pattern.At R6 stage,except for K accumulation in soybean petioles,D2N2 and D3N2 reached significant difference with D1N1 in other soybean organs.At R8 stage,K accumulation in seeds of D2N2 and D3N2 were higher than D1N1 by 24.9% and 23.5%(P<0.05).D2N2 had the highest yield,3.96 t.ha-1,increased by 10.6%-36.6% compared with other treatments(P<0.05).

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备注/Memo

基金项目：科技部“十二五”科技支撑计划（2013BAD20B04）。

第一作者简介：赵晶（1989-），女，硕士，主要从事作物养分管理研究。E-mail:jing04519@yeah.net。

更新日期/Last Update: 2014-12-29