LED在芽苗菜生产中的应用及前景

Applications and Prospects of LED in Sprout Seedling Vegetable Cultivation

芽苗菜俗称"芽菜",一般是指用植物种子或其他营养体,在一定条件下培育出可供食用的嫩芽、芽苗、芽球、幼梢或幼茎等芽苗类蔬菜。芽苗菜营养丰富,风味独特,品质柔嫩,且种子萌发后营养价值提升,具有人体不可缺少的多种氨基酸和矿物质,安全卫生并具有一定的医疗保健作用。但在生产中通常使用一些生长调节剂或微量元素溶液进行浸种或喷洒。易造成化学物质在芽苗菜内的积累,从而引发安全与卫生隐患。研究开发安全环保、经济有效的芽苗菜生产技术迫在眉睫。光环境调控技术采用物理手段调控植物生长,符合绿色农业的要求,在芽苗菜生产中具有广阔的应用前景。LED具有光质纯、光效高、波长类型丰富、光谱能量调制便捷等突出优势,是芽苗菜生产中理想的光环境调控设施。本文综述了我国芽苗菜的发展现状及存在问题,LED应用于芽苗菜生产的研究及LED光环境调控技术在芽苗菜生产中的应用前景。

Sprout seedling vegetable is commonly known as sprout, which including edible bud, shoot, gemmule, young shoot or young stem cultivated under certain conditions. Sprout seedling vegetable is nutritious, with unique flavor and tender quality. It contains a variety of body essential amino acids and minerals as the nutritional value is enhanced after seed germination. Sprout seedling vegetable is healthy and safe and has certain health care function. However, some growth regulators and trace element solution which would easily lead to the accumulation of chemicals commonly used for soaking or spraying in sprout cultivation and could give rise to safety and health hazards. So the development of safe, green, economic and efficient sprouts production technology is necessary. Light environment control technology which controls plant growth by physical means can meet the requirements of green agriculture and has broad application prospects in sprout seedling vegetable cultivation. There are many outstanding advantages of LED such as pure light quality, high efficiency, rich wavelength and convenient spectral energy modulation. So it is known as an ideal light environment control facilities in sprout seedling vegetables cultivation. The investigation and applications about light environment control in sprout seedling vegetable cultivation are summarized in this paper. The main contents include the present status and existing problems in sprout seedling vegetable cultivation in China, application of light control in sprout seedling vegetable cultivation, studies and prospects of LED used in sprout seedling vegetable cultivation.