[1]张含彬 　伍晓燕 　杨文钰.氮肥对套作大豆干物质积累与分配的影响*[J].大豆科学,2006,25(04):404-409.[doi:10.11861/j.issn.1000-9841.2006.04.0404]
　Zhang Hanbin Wu XiaoyanYang Wenyu.EFFECTOF NITROGEN FERTILIZER ON THE ACCUMULATION AND DISTRIBUTIONOF DRY MATTER IN RELAY-PLANTING SOYBEAN[J].Soybean Science,2006,25(04):404-409.[doi:10.11861/j.issn.1000-9841.2006.04.0404]
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氮肥对套作大豆干物质积累与分配的影响*

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第25卷 期数: 2006年04期 页码: 404-409 栏目: 出版日期: 2006-11-25
Title:
EFFECTOF NITROGEN FERTILIZER ON THE ACCUMULATION AND DISTRIBUTIONOF DRY MATTER IN RELAY-PLANTING SOYBEAN
作者:
张含彬 　伍晓燕 　杨文钰
(四川农业大学农学院,雅安 625014)
Author(s):
Zhang Hanbin 　Wu Xiaoyan　Yang Wenyu
(College of Agronomy , Sichuan Agricultural University , Ya’an 625014)
关键词:
施氮量 ; 套作大豆; 干物质 ; 产量 ; 相关关系
Keywords:
Nitrogen application amount ; Relay-planting soybean; Dry matter ; Yield; Correlation coeffi-cient
DOI:
10.11861/j.issn.1000-9841.2006.04.0404
文献标志码:
A
摘要:
　在麦 /玉米/豆种植模式下, 研究了施氮量对套作大豆干物质积累与分配的影响。结果表明,随着施氮量的提高, 大豆 LAI 增大, 叶片衰老延缓, 在盛荚期保持更大的叶面积 ,有利于干物质的积累 。适宜的施氮量(≤135 kg /hm 2 )在大豆结荚期后能协调植株各部分干物质的输出率, 对套作大豆有明显的增产作用;高氮处理(180. 225 kg /hm2 )促使植株茎、叶干物质量在始熟期积累过多,而干物质的输出率降低 ,导致源/库比例不协调, 对豆荚的贡献率降低, 产量降低 。就不同器官而言,叶片对籽粒的贡献率大于茎秆对籽粒的贡献率 。干物质量与产量构成因素存在明显相关 ,在套作大豆苗期 ,根 、茎干物质量与充实度、产量显著正相关 ;在套作大豆生育中 、后期,叶片干物质积累量与产量构成因素呈显著负相关。综上所述 ,适宜施氮量(45～ 90 kg /hm2 )提高干物质的贡献率,减少大豆秕粒, 有利于套作大豆获得高额产量 。
Abstract:
　In the wheat / maize/ soybean relay-cropping pattern, the accumulation and distribution of drymatter were studied at different levels of nitrogen fertilizer (0, 45, 90,135,180,225 kg /hm?2?). The resultsshowed that the leaf area index (LAI) of soybean was improved and leaf senescence was deferred by in-creasing of nitrogen levels , nitrogen treatments kept the high LAI of soybean at the growth stage of R 4 ,which was favorable for the dry matter accumulation. Appropriate nitrogen levels (≤135 kg /hm2 )harmo-nized the dry matter outputting ratio (OR)to every organ of soybean after pudding , and increased yield ofrelay-planting soybean. The high level of nitrogen (180, 225 N kg /hm2 ) accumulate more dry matter be- fore maturation, which led to the unharmonious correlation between the storeroom and source , declinedthe OR of dry matter , lowed the soybean yield. As different organ was concerned, contribution ratio (CR)of leaf was more than that of stem. There was correlation between dry matters accumulation and yieldcomponents , dry matter of root and stem had a significant positive correlation with seed filling and yield atseedling growth stage of relay-planting soybean , but dry leaf weight had a negative correlated with theyield components at the later grow th stage. In a word, appropriate nitrogen levels (45～ 90 kg /hm 2 )im-proved CR of dry matter and decreased vacant seed, which was effective for achieving harvest.

参考文献/References:

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备注/Memo

基金项目:四川省重大攻关项目“盆周山区可持续农业发展技术与示范”(04NG020- 017)

作者简介:张含彬(1980 -), 男, 在读硕士, 从事植物生理与栽培的研究, E - mail:duck - zhb @163. com
通讯作者:杨文钰教授, 博士生导师, 四川省学术技术带头人。

更新日期/Last Update: 2016-12-16