LED红蓝光光强与刈割时间对黑麦草生长和产量的影响  

Effects of LED Red and Blue Light Intensity and Cutting Time on the Yield of Ryegrass(Lolium Perenne L.)

作　　者：陈艳琦 刘家源 刘文科[1] CHEN Yanqi;LIU Jiayuan;LIU Wenke(Key Laboratory of Energy Conservation and Waste Management of Agricultural Structures,Ministry of Agriculture and Rural Affairs,Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences,Beijing 100081,China)

机构地区：[1]中国农业科学院农业环境与可持续发展研究所,农业部设施农业节能与废弃物处理重点实验室,北京100081

出　　处：《照明工程学报》2023年第2期82-86,共5页China Illuminating Engineering Journal

摘　　要：为在人工光植物工厂条件下生产黑麦草获得较高的投入产出比,本研究分别设置了200~600μmol·m^(-2)·s^(-1)五个光强梯度和在第9 d、第23 d和第37 d刈割三种刈割时间处理,比较了不同光强和刈割时间对其株高、分蘖数、产量和鲜干比的影响。结果表明,不同光强下黑麦草的株高、分蘖数和产量存在显著差异。随着光强增加,分蘖数和产量显著上升,鲜干比显著下降,当光强达到500μmol·m^(-2)·s^(-1)后分蘖数、产量和鲜干比保持稳定,表明500μmol·m^(-2)·s^(-1)是黑麦草生产的较适光强。在刈割时间方面,随着刈割时间的延长,株高、分蘖数和产量呈上升趋势,鲜干比降低,第37 d采收时株高、分蘖数和产量达到最高,鲜干比最低。本研究为黑麦草的人工光植物工厂生产提供了参考。In order to produce ryegrass with superior input-output ratio under the condition of artificial light plant factory,five light intensity gradients of 200 to 600μmol·m^(-2)·s^(-1)and three cutting time on the 9th,23rd and 37th days were set.The plant height,tiller number,yield and fresh/dry ratio were compared under different light intensities and cutting treatments.The results show significant differences in plant height,number of tillers and ryegrass yield for different light intensities.As the intensity of the light increases,the number of tillers and the yield increase significantly,and the fresh-to-dry ratio reverses.When the light intensity reached 500μmol·m^(-2)·s^(-1),the tiller number,yield and fresh-to-dry ratio remained stable,indicating that 500μmol·m^(-2)·s^(-1)was the optimum light intensity for ryegrass production.In terms of cutting time,plant height,number of tillers and yield show an upward trend with the extension of cutting time,while the fresh/dry ratio decreases.On the 37th day of harvest,the plant height,the number of tillers and the yield were the highest,while the fresh-to-dry ratio was the lowest.This study provides a valuable reference for the production of artificial light plants for ryegrass.

关 键 词：人工光 植物工厂 黑麦草 刈割 产量 

分 类 号：TM923[电气工程—电力电子与电力传动]