[1]闫春娟,韩晓增,王守宇,等.水钾耦合对大豆干物质积累和产量的影响[J].大豆科学,2007,26(06):862-867.[doi:10.3969/j.issn.1000-9841.2007.06.011]
　YAN Chun-juan,HAN Xiao-zeng,WANG Shou-yu,et al.EFFECT OF WATER-POTASSIUM COUPLING ON DRY MATTER ACCUMULATION AND YIELD OF SOYBEAN[J].Soybean Science,2007,26(06):862-867.[doi:10.3969/j.issn.1000-9841.2007.06.011]
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水钾耦合对大豆干物质积累和产量的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第26卷 期数: 2007年06期 页码: 862-867 栏目: 出版日期: 2007-12-25
Title:
EFFECT OF WATER-POTASSIUM COUPLING ON DRY MATTER ACCUMULATION AND YIELD OF SOYBEAN
文章编号:
1000-9841(2007)06-0862-06
作者:
闫春娟1; 2; 韩晓增2; 王守宇2; 王树起2; 李海波2
1. 东北农业大学，哈尔滨150030；
2.中国科学院东北地理与农业生态研究所，哈尔滨150081
Author(s):
YAN Chun-juan1; 2; HAN Xiao-zeng2; WANG Shou-yu2; WANG Shu-qi2; LI Hai-bo2
1. Northeast Agricultural University，Harbin 150030;
2.Northeast Institute of Geography and Agricultural Ecology，CAS，Harbin 150081
关键词:
大豆; 水钾耦合; 干物质积累; 产量
Keywords:
Soybean; Water-potassium coupling; Dry matter accumulation; Yield
分类号:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.06.011
文献标志码:
A
摘要:
盆栽条件下，分别在大豆的营养生长期（V2～R1）、开花期（R1～R3）、结荚期（R3～R5）三个关键生育时期进行水分调控，研究不同供钾水平下水分状况对大豆不同生育时期干物质积累及产量的影响，以期为黑龙江省大豆生产提出更好的栽培管理措施，指导农业生产实践。结果表明：水分对干物质积累及根冠比的影响大于钾肥，水多有利于干物质的积累，但根冠比随水分的增加而减小；钾肥对干物质积累及根冠比的影响变化趋势并不明显。在一定范围内，产量随干物质的增加而提高，但过高的生物量，反而不利于产量的形成。营养生长期（V2～R1）控水下大豆的产量效应是钾肥＞水分＞水钾互作，而花期（R1～R3）、结荚期（R3～R5）控水下，大豆产量的变异主要是由水分引起的，水钾互作只引起极小的一部分，而钾肥几乎没有任何效应。大豆对水分较为敏感的时期是开花期和结荚期，各时期敏感程度表现为结荚期＞花期＞营养生长期；同一生育时期控水下水分对大豆产量的影响要高于钾肥；旱涝都将影响大豆籽粒产量的形成，但干旱引起的减产程度要大于涝害。
Abstract:
Pot experiments were carried out to study the effect of water-potassium coupling on dry matter accumulation and yield of soybean.The aim is to provide better planting measure for soybean production in Heilongjiang province.In this experiment，five water supply levels and three potassium fertilizer application levels were included in terms of soil water content controlled at vegetative stage（V2-R1），flowering stage（R1-R3） and podding stage（R3-R5），respectively.The results showed that water supply had more significant effect on dry matter weight and root to shoot ratio than that of potassium fertilizer application.The sufficient soil moisture enhanced the accumulation of dry matter，while root to shoot ratio decreased with the increment of soil moisture content.The yield increased with accumulation of dry matter，however，excessively biomass resulted in yield decline.When soil water content was controlled during vegetative stage of soybean，the effect of different factors in yield was potassium fertilizer > water> water potassium fertilizer；when the soil water content was controlled during flowering stage and podding stage，the yield difference was mainly attributed to the water supply，while water potassium fertilizer interaction only played a little role and potassium fertilizer almost had no effect.The yield was sensitive to water supply during flowering and podding stage，in which the sensitivity was found podding stage（R3-R5）>flowering stage（R1-R3）>vegetative stage（V2-R1）；the contribution of water supply to the yield formation was more central than potassium fertilizer application in light of controlling soil water at the same growth stage.Both drought and water logging conditions were found to influence the yield of soybean，in which drought condition more significantly reduced the yield.

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备注/Memo

基金项目：国家重点基础研究发展计划（2005CB121103；2005CB121106）资助

作者简介：闫春娟（1983-），女，硕士研究生，主要从事作物生理研究。E-mail:yanchunjuan1983@163.com
通讯作者：韩晓增研究员，博士生导师。Tel:0451-86602940;E-mail:xdhsxzh@mail.hrb.hl.cninfo.net

更新日期/Last Update: 2014-10-19