品种和有机肥对全株玉米青贮品质、消化特性及有氧稳定性的影响  

Effect of variety and organic fertilizer on quality,digestibility characteristics,and aerobic stability of whole-plant corn silage

作　　者：张洪瑞 陈雪 王一凡 吉方财 王磊[1] 包锦泽 孙志强 玉柱[1] ZHANG Hong-rui;CHEN Xue;WANG Yi-fan;JI Fang-cai;WANG Lei;BAO Jin-ze;SUN Zhi-qiang;YU Zhu

机构地区：[1]中国农业大学草业科学与技术学院,北京100193

出　　处：《饲料研究》2024年第3期107-111,共5页Feed Research

基　　金：国家重点研发计划“政府间国际科技创新合作”重点专项(项目编号:2022YFE0111000);青海省玉树州杂多县特色养殖业提质增效关键技术集成与示范(项目编号:2022YFD1602305);财政部和农业农村部国家现代农业产业技术体系(项目编号:CARS-34);宁夏回族自治区中央引导地方科技发展专项(项目编号:2022FRD05029)。

摘　　要：试验旨在探讨有机肥对不同品种的全株玉米青贮品质、消化特性及有氧稳定性的影响。采用双因素试验设计,选用大康205(DK205)、高油958(HO958)、中玉335(ZY335)和中农787(ZN787)4个玉米品种,分别进行施用有机肥和不施用有机肥两个处理,于蜡熟期收割并进行全株青贮,发酵200 d后对相关指标进行分析。结果表明,品种和有机肥的互作效应对乳酸、乙酸、丙酸、丁酸含量和氨态氮/总氮比值有影响(P<0.05);品种和有机肥的互作效应可影响干物质、粗蛋白、淀粉和酸性洗涤纤维含量(P<0.05)。施用有机肥组的体外干物质消化率及有氧稳定性较高,中农787的体外中性洗涤纤维消化率高于其他3个品种(P<0.05)。研究表明,施用有机肥对不同品种全株玉米青贮品质、消化特性及有氧稳定性均起到不同程度的改善作用,中农787适宜作为全株青贮玉米品种在内蒙古地区推广种植,施用有机肥可以进一步提高青贮品质。The experiment aimed to explore the impact of organic fertilizer on the quality,digestive characteristics,and aerobic stability of whole-plant corn silage of different varieties.A two-factor experimental design was employed,using four corn varieties:Da Kang 205(DK205),High Oil 958(HO958),Zhong Yu 335(ZY335),and Zhong Nong 787(ZN787).Two treatments were applied:Organic fertilizer application and no organic fertilizer application.The whole plants were harvested at the wax ripening stage and subjected to whole-plant ensiling.After a 200-day fermentation period,relevant indicators were analyzed.The results showed that the interaction effect of variety and organic fertilizer had an impact on the content of lactic acid,acetic acid,propionic acid,butyric acid and ammonia nitrogen/total nitrogen ratio(P<0.05).The Interaction effect of variety and organic fertilizer had an impact on the content of dry matter,crude protein,starch,and acid detergent fiber(P<0.05).The organic fertilizer group exhibited higher in vitro dry matter digestibility and aerobic stability,with ZN787 showing significantly higher in vitro neutral detergent fiber digestibility than the other three varieties(P<0.05).The study indicates that the application of organic fertilizer has varying degrees of improvement on the quality,digestive characteristics,and aerobic stability of whole-plant corn silage for different varieties.ZN787 is suitable for promoting whole-plant corn silage cultivation in the Inner Mongolia region,and the application of organic fertilizer can further enhance the silage quality.

关 键 词：全株玉米 品种 有机肥 体外消化率 有氧稳定性 

分 类 号：S816[农业科学—饲料科学]