[1]常雪荣,史雷,徐伟洲,等.有机肥与复合肥配施对青贮玉米根系形态特征的影响[J].江苏农业科学,2026,54(9):189-200.
 Chang Xuerong,et al.Influences of combined application of organic fertilizer and compound fertilizer on root morphological characteristics of silage maize[J].Jiangsu Agricultural Sciences,2026,54(9):189-200.
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有机肥与复合肥配施对青贮玉米根系形态特征的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第9期
页码:
189-200
栏目:
动物科学与动物医学
出版日期:
2026-05-05

文章信息/Info

Title:
Influences of combined application of organic fertilizer and compound fertilizer on root morphological characteristics of silage maize
作者:
常雪荣1史雷1徐伟洲12韩侠12乔雨12卜耀军12
1.榆林大学现代农学院,陕西榆林 719000; 2.榆林大学陕西省黄土高原饲用植物工程技术研究中心,陕西榆林 719000
Author(s):
Chang Xueronget al
关键词:
有机肥复合肥根总鲜重根总干重根总长根表面积青贮玉米根系形态特征
Keywords:
-
分类号:
S513.06
DOI:
-
文献标志码:
A
摘要:
为探究榆林风沙区青贮玉米(Zea mays L.)在有机肥与复合肥配施模式下不同生育期根系形态动态变化特征,揭示根系与养分相互作用机制,为风沙区节肥农业提供理论依据。设置4个处理:不追肥(T1)、追施有机肥 1 500 kg/hm2(T2)、追施复合肥600 kg/hm2(T3)、追施有机肥1 200 kg/hm2和复合肥300 kg/hm2组合(T4),测定地上部和根的鲜重和干重,以及根系形态指标。在大喇叭口期,有机肥与复合肥配施处理通过速效养分的快速释放显著促进了玉米根系的形态发育。大京九23和禾玉9566根总鲜重较对照处理分别显著增加61.2%、66.6%;总干重增加18.2%、19.9%;根总长增加27.8%、30.0%;表面积增加18.2%、45.2%;总体积增加31.9%、35.0%,表明速效肥料对根系的早期生长具有显著促进作用,而有机肥处理因养分释放速率较缓,2个品种在该阶段均未表现出显著效应。至吐丝期,有机肥与复合肥配施展现出协同效应,2个品种根总鲜重较对照处理分别显著增加37.5%、36.1%;总干重增加65.9%、20.9%;根总长增加77.6%、57.6%;根表面积增加66.7%、27.8%;根总体积增加45.8%、42.4%,体现了速效养分吸收与缓释供肥的协同优势。在收获期,有机肥与复合肥配施处理仍维持显著优势,2个品种总鲜重较对照处理分别显著增加51.6%、46.7%;总干重增加53.2%、11.7%;根总长增加81.2%、24.7%;根表面积增加543%、351%;根总体积增加18.5%、35.8%,地上部鲜重分别显著增加15.9%、10.7%,地上部干重增加11.7%、14.8%。综上,有机肥与复合肥配施处理在根系-冠层协同调控方面表现出最优效应。有机肥与复合肥对根系生长的促进作用主要集中于10~20 cm土层,根系发育呈现全生育期持续优化特征,该响应特征揭示了配施处理通过速效养分的即时供给与有机质缓释的持续供肥相结合,实现了“爆发式生长”与“稳态维持”的时序耦合机制;配施处理通过优化根冠资源分配策略,使玉米产量潜力提升。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2025-05-10
基金项目:陕西省科技计划(编号:2024QCY-KXJ-101);榆林市科学技术研发专项(编号:2025-CXY-119、2025-CXY-118)。
作者简介:常雪荣(1999—),女,陕西铜川人,硕士研究生,研究方向为人工饲草栽培管理研究。E-mail:changxuerong2@163.com。
通信作者:史雷,硕士,高级实验师,硕士生导师,主要从事人工饲草栽培管理研究。E-mail:shilei_ylxy@126.com。
更新日期/Last Update: 2026-05-05