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LED光源在植物工厂中的应用

2016-10-20徐圆圆覃仪吕蔓芳刘旭庆韦素洁杨梅

现代农业科技 2016年6期

徐圆圆 覃仪 吕蔓芳 刘旭庆 韦素洁 杨梅

摘要 LED光源作为第四代新型半导体固态冷光源,具有光质纯、光效高、波长类型丰富、光强与光质可调控及节能、环保、寿命长等优点,在人工光植物工厂光环境调控和太阳光植物工厂人工补光方面具有广泛的应用前景。文章阐述了植物工厂和LED光源的特性及优点,介绍了LED光源在植物工厂补光、光环境调控中的应用,并对LED光源在植物工厂中的应用前景进行了展望。

关键词 LED光源;植物工厂;光环境调控

中图分类号 S123 文献标识码 A 文章编号 1007-5739(2016)06-0161-02

Current Status and Developmental Trends of LED light source Utilization in Plant Factory

XU Yuan-yuan 1 QIN Yi 2 LV Man-fang 2 LIU Xu-qing 1 WEI Su-jie 1 YANG Mei 1 *

(1 College of Forestry,Guangxi University,Nanning Guangxi 530004; 2 Guangxi State-owned Weidu Forest Farm)

Abstract LED light source as the fourth generation of new type semiconductor solid state cold light source,with the advantages of pure light quality,high efficiency,rich wavelength,light intensity and light quality are controlling and energy saving,environmental protection,and so on. These advantages make LED light source have a wide application prospect in artificial light plant factory ambient light regulation and solar plant factory of artificial lighting in. The advantages and characteristics of plant factory and light-emitting diode were described,the application of light fill and light environment regulation in plant factory were introduced,and the application of LED light source in plant factory was prospected.

Key words LED light source;plant factory;light environment regulation

隨着人们对农产品需求的日益增加,人们的环境意识薄弱使得环境污染不断加重,气候灾害频发,使得农业资源减少,农田生态系统的生产性能与稳定性下降,严重影响其可持续发展[1],设施农业的出现为解决此类问题提供了途径。植物工厂是设施农业的最高级发展阶段,它很好地将现代工业、生物科技、营养液栽培和信息技术等相结合,对设施内环境因子实施高精度控制,具有全封闭、对周围环境要求低,缩短植物收获期,节水节肥、无农药生产、不向外排放废物等优点[2],单位土地利用效率是露地生产的40~108倍,智能化人工光源及其光环境调控对其生产效率起到决定性作用[3]。植物工厂的能耗成本通常占总运行费用的50%~60%,将LED光源运用于植物工厂可以降低运行成本,随着半导体光源技术的发展,LED光源品质不断提高、价格逐渐下降,LED将逐渐取代荧光灯作为密闭式植物工厂中的人工光源[4-5],这很好地解决了植物工厂的能耗问题。……

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