烤烟立体漂浮育苗LED补光效果

Effects of LED Lighting on Seedling Production with Multilayer Float System of Flue-cured Tobacco

摘要: 为探讨烤烟立体漂浮育苗补光效果,研究了LED补光对烟苗素质及节能的影响.结果表明,随着LED补光量的增加,烟苗茎高、茎直径、叶片数、鲜质量以及叶绿素相对含量和根系活力均呈增加趋势,而补光耗电成本则随着补光量的增加而显著上升.与全光谱荧光灯补光对照相比,每育7.6 m²面积的烟苗,采用30 ~ 40根LED灯管(每根灯管内装144颗LED灯)进行补光效果较好,其所育烟苗素质与对照相当,能达到移栽壮苗要求,其补光耗电成本与全光谱荧光灯管相比可下降46.8% ~ 60.2%.

Abstract: The effects of light emitting diode (LED) lighting on seedling quality and energy cost in multilayer float system of flue-cured tobacco were studied. The results showed that the seedling stem height, stem diameter, leaf number, fresh weight, chlorophyll content, and root activity increased with the increase of LED lights. The cost of power consumption increased significantly with the increase of LED lights. Compared with the control (24 full spectrum fluorescent lights), each 7.6 m² area of multilayer floating system needed 30 to 40 LED tubes (each LED tube containing 144 LED lights), and the cost of power consumption reduced by 46.8% to 60.2%.