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春播青贮玉米芸苔素应用效果研究

Study on the Application Effect of Brassinolide in Spring Sowing Silage Corn
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摘要 为探讨沧州生态类型区春播青贮玉米种植中芸苔素应用的可行性,以3个青贮玉米品种为材料开展田间比较试验,研究芸苔素对玉米生育期、农艺性状、产量和经济效益的影响。结果显示:与对照相比,芸苔素的应用对玉米生育期有一定延缓作用;株高增加3.7%-11.0%,穗位增加5.0%-8.5%,茎粗降低4.6%-6.0%,均达显著水平;鲜生物质量增加7.5%-13.2%,干生物质量增加1.7%-9.7%,达显著水平;产值增加1 600-2 600元/hm^(2) ,经济效益显著提高。芸苔素对生育期短的青贮玉米品种类型(低积温需求品种)应用效果明显,可有效提高青贮玉米的株高,增产、增值效果显著。 In order to explore the feasibility of brassinolide application in spring sowing silage corn planting in Cangzhou ecological type area,the effects of brassinolide application on growth period,agronomic characters,yield and economic be-nefit of three silage corn varieties were studied.The results showed that the application of brassinolide had a certain delaying effect on the growth period of maize compared with the control;the plant height increased by 3.7%to 11.0%,the ear position increased by 5.0%to 8.5%,and the stem diameter decreased by 4.6%to 6.0%.The fresh biomass increased by 7.5%to 13.2%,and the dry biomass increased by 1.7%to 9.7%,which reached a significant level.The output value increased from 1600 to 2600 yuan/hm^(2),and the economic benefit increased significantly.Brassinolide has an obvious effect on the varieties with short growth period(varieties with low accumulated temperature demand)and can effectively increase the plant height,yield and value of silage corn.
作者 鲁珊 阎旭东 肖荷霞 毛彩云 郭志顶 徐玉鹏 LU Shan;YAN Xudong;XIAO Hexia;MAO Caiyun;GUO Zhiding;XU Yupeng(Cangzhou Academy of Agriculture and Forestry Sciences,Cangzhou,Hebei 061001,China)
出处 《作物研究》 2021年第4期307-310,共4页 Crop Research
基金 河北省农业产业技术体系草业创新团队栽培与信息化管理技术岗位(HBCT2018160202) 河北省重点研发计划项目(19226437D) 沧州市重点研发计划指导项目(204202001)。
关键词 青贮玉米 芸苔素 生物产量 经济效益 silage corn brassinolide plant weight economic benefit
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