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钾肥施用增加菜用大豆生殖生长期不同部位钾素积累
Authors
刘晓冰
刘长锴
+4 more
张秋英
李彦生
涂冰洁
田博文
Publication date
1 January 2016
Publisher
Abstract
利用菜用大豆品种(系)中科毛豆1号和品系121,在正常氮磷种肥用量基础上,进行不施钾(KO),种肥施钾120 kg·hm~(-2)(Kl),种肥施钾120 kg·hm~(-2)+叶面喷施钾肥(K2)3种施钾处理,探究菜用大豆开花后28~56 d内茎秆、叶片、叶柄、荚皮、籽粒中钾素积累动态。结果表明:相同时期不同部位钾素积累均为K2>K1 >K0,各部位钾的相对积累量为籽粒>荚皮>叶片>叶柄>茎。同时发现,菜用大豆茎秆、叶片、叶柄、荚皮中钾积累量均随着生育进程逐渐下降,而籽粒中钾素的积累在开花后28~42d下降,42~49 d升高,随后略有降低。施用钾肥增加了菜用大豆植株各部位的钾积累量,施钾叶面肥可进一步增加钾积累量
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Northeast Institute of Geography and Agroecology, Chinese Academy Of Sciences
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oai:ir.iga.ac.cn:131322/6907
Last time updated on 21/04/2018