播期和播量对盐麦7号青贮原料产量和品质的影响  

Effects of Sowing Date and Planting Density on the Silage Yield and Nutritional Quality of the New Barley Variety Yanmai No.7

作　　者：张英虎[1] 王春吉 杨力 乔海龙[1] 臧慧[1] 梁志浩 徐肖 杨红燕 薛松 汪强 程怡璠 沈会权[1] ZHANG Yinghu;WANG Chunji;YANG Li;QIAO Hailong;ZANG Hui;LIANG Zhihao;XU Xiao;YANG Hongyan;XUE Song;WANG Qiang;CHENG Yifan;SHEN Huiquan(Jiangsu Coastal Area Institute of Agricultural Sciences,Yancheng 224001,China;Yancheng Municipal Technical Guidance Station for Grain and Oil Crops,Yancheng 224002,China)

机构地区：[1]江苏沿海地区农业科学研究所,江苏盐城224002 [2]盐城市粮油作物技术指导站,江苏盐城224000

出　　处：《大麦与谷类科学》2023年第1期26-30,共5页Barley and Cereal Sciences

基　　金：江苏现代农业(特粮特经)产业技术体系啤酒大麦创新团队(JATS[2021]228);国家大麦青稞产业技术体系(CARS-05);2021年种质资源普查与保护项目[盐农财(2022)2]。

摘　　要：为研究播期和播量对大麦新品种盐麦7号青贮原料产量和品质等的影响,设计2个播期(11月1日和11月10日)、3个播量(15.0、17.5、20.0 kg/667 m^(2)),研究其对盐麦7号青贮原料农艺性状、产量、品质和籽粒产量的影响。结果表明,与正常播期(11月1日)相比,晚播环境下(11月10日)冬前苗、干物质含量、粗淀粉含量显著下降,中性洗涤纤维、酸性洗涤纤维含量及30 h中性洗涤纤维消化率显著上升;随着播量的升高,基本苗、冬前苗、有效穗数、株高、产量、籽粒产量显著上升,酸性洗涤纤维和30 h中性洗涤纤维消化率显著下降。总体来看,播期主要影响盐麦7号的青贮原料品质相关性状,播量主要影响盐麦7号的产量相关性状,盐麦7号在11月1日播种,播量20.0 kg/667 m^(2)时可以获得较高的青贮原料产量和品质。To investigate the effects of different sowing dates and planting densities on the silage yield and nutritional quality of the new barley variety Yanmai No.7,two sowing dates(November 1 and 10)and three planting densities(15.0,17.5,20.0 kg/667 m^(2))were designed to evaluate their effects on the silage agronomic traits,silage yield,and silage nutritive quality,and grain yield of Yanmai No.7.The results showed that compared with the normal sowing date(November 1),the later sowing date(November 10)led to significant decreases in seedling number per 667 m^(2) before winter,dry matter content,and crude starch content at silage barley harvest stage;but significant increases in neutral detergent fiber content,acid detergent fiber content,and 30 h digestion rate of neutral detergent fiber.With increasing planting density,basic seedling number per 667 m^(2),seeding number per 667 m^(2)before winter,effective panicle number per 667 m^(2),plant height,silage yield,and grain yield all rose significantly,while acid detergent fiber content and 30 h digestion rate of neutral detergent fiber declined significantly.In general,the sowing date mainly affected the traits related to the silage nutritional quality of Yanmai No.7,while the planting density mainly influenced its yield-related traits.In conclusion,sowing the seed of Yanmai No.7 on November 1 at the density of 20 kg/667 m^(2) can result in a higher silage yield and nutritional quality.

关 键 词：大麦 播期 播量 青贮产量 营养品质 

分 类 号：S512.3[农业科学—作物学]