Effects of Variety and Planting Density on the Introduction Experiment of Silage Corn in Yuyang Area

doi:10.11733/j.issn.1007-0435.2025.12.027

Acta Agrestia Sinica ›› 2025, Vol. 33 ›› Issue (12): 4152-4161.DOI: 10.11733/j.issn.1007-0435.2025.12.027

• 2025-12-28 • Previous Articles

Effects of Variety and Planting Density on the Introduction Experiment of Silage Corn in Yuyang Area

XU Xin-xin¹, WANG Lian-jun², YANG Jun-wei³, YE Mao-mao³, WANG Lei³, ZHANG Cai-ping⁴, MA Xi-qing¹

1. College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China;
2. Yuyang District Forestry and Grassland Ecological Restoration Center of Yulin City, Yulin, Shaanxi Province 719000, China;
3. Yuyang District Grassland Station of Yulin City, Yulin, Shaanxi Province 719000, China;
4. Shaanxi Earth Seed Industry(group)Co. Ltd, Yulin, Shaanxi Province 719000, China

Received:2025-03-17 Revised:2025-06-25 Published:2025-12-01

品种与种植密度对榆阳地区青贮玉米引种试验的影响

徐欣欣¹, 王连军², 杨军卫³, 叶毛毛³, 王磊³, 张彩平⁴, 马西青¹

1. 中国农业大学草业科学与技术学院, 北京 100193;
2. 榆林市榆阳区林草生态修复中心, 陕西榆林 719000;
3. 榆林市榆阳区草原工作站, 陕西榆林 719000;
4. 陕西大地种业(集团)有限公司, 陕西榆林 719000

通讯作者: 马西青，E-mail：ma2016@cau.edu.cn
作者简介:徐欣欣（2002-），汉族，江苏徐州人，硕士研究生，主要从事牧草育种研究，E-mail：s20233243628@cau.edu.cn；
基金资助:
现代农业产业技术体系（CARS-34）；黄淮海夏玉米区高产抗逆适宜机械化新种质创制与应用（2022YFD1201000）资助

Abstract

Abstract: To address the critical challenges of poor varietal adaptability， insufficient understanding of yield-quality synergies in maize cultivars， and limited suitable silage maize （Zea mays） varieties for Yuyang aeolian sandy grassland， this study systematically evaluated 12 specialized silage and dual-purpose （grain-silage） maize cultivars through a two-factor experimental design （12 cultivars×2 planting densities）. Multivariate analysis integrating grey relational analysis was conducted on 11 key parameters encompassing agronomic traits， biomass yield， and nutritional quality. Results demonstrated that： cultivar significantly influenced agronomic traits， biomass production （P<0.05）， and nutritional profiles， whereas planting density primarily affected plant height and stem diameter； interactive effects between cultivar and density were observed in plant height， stem diameter， functional leaf number， and fresh weight； ‘Jingjiu Silage 16’ and ‘Jingke 932’ achieved superior fresh biomass yields （57.96 and 57.91 t·hm^-2， respectively）， with ‘Jingke 932’ showing optimal comprehensive performance under high-density cultivation （8.25×10⁴plants·hm^-2） and ‘Kehe 699’ excelling under low-density conditions （6.75×10⁴plants·hm^-2）. These cultivars are recommended for demonstration and promotion in the target region. This study provides valuable insights for optimizing silage maize production systems to reduce livestock feeding costs， facilitate large-scale animal husbandry， and support regional agricultural restructuring.

Key words: Silage corn, Varietal adaptability, Planting density, Gray relational analysis, Agro-pastoral ecotone

摘要： 针对农牧交错带青贮玉米（Zea mays）品种适应性差、产量与品质协同优化机制不清楚，适宜榆阳风沙草滩区种植的青贮玉米品种数量少等问题。本研究以12个青贮专用型和粮饲兼用型玉米新品种为研究对象，通过双因素试验设计（2个密度梯度×12个品种），结合灰色关联分析法对11项农艺性状、产量性状及营养品质指标进行综合解析。结果表明：品种对主要农艺性状、生物产量和营养品质等指标影响均较显著，密度仅影响株高、茎粗等农艺性状，而株高、茎粗、绿叶数和鲜重等指标受品种与密度交互效应影响。‘京九青贮16’和‘京科932’鲜草产量较高，分别达57.96和57.91 t·hm^-²；‘京科932’（8.25×10⁴ 株·hm^-²）与‘科河699’（6.75×10⁴ 株·hm^-²）综合排名表现优异，适宜在榆阳风沙草滩区进行示范和推广种植。对于降低畜牧业养殖成本，发展规模化养殖，促进农业产业结构调整等都具有重要意义。

关键词: 青贮玉米, 品种适应性, 种植密度, 灰色关联分析, 农牧交错带

CLC Number:

S548
S513

XU Xin-xin, WANG Lian-jun, YANG Jun-wei, YE Mao-mao, WANG Lei, ZHANG Cai-ping, MA Xi-qing. Effects of Variety and Planting Density on the Introduction Experiment of Silage Corn in Yuyang Area[J]. Acta Agrestia Sinica, 2025, 33(12): 4152-4161.

徐欣欣, 王连军, 杨军卫, 叶毛毛, 王磊, 张彩平, 马西青. 品种与种植密度对榆阳地区青贮玉米引种试验的影响[J]. 草地学报, 2025, 33(12): 4152-4161.

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Effects of Variety and Planting Density on the Introduction Experiment of Silage Corn in Yuyang Area

品种与种植密度对榆阳地区青贮玉米引种试验的影响

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