补光技术在蔬菜生产中的应用研究进展

Application research progress of supplementary light technology in vegetable production

北方冬春季节大部分地区的设施植物生长都存在缺光问题。塑料大棚、日光温室、连栋温室等设施受到冬春天气环境影响时,自然光无法满足植物对光的需求,导致植物生长不良,是造成作物减产、绝收、品质下降的重要原因。我国北方冬春季节气温低、日照短,光照是工厂化蔬菜育苗的主要限制因子之一,蔬菜幼苗及嫁接苗在弱光环境下易出现弱苗、徒长、生长缓慢等现象,严重制约了农业生产。为解决设施生产中光照不足的问题,采用补光技术,是现代农业的重要手段。主要从不同光环境对蔬菜幼苗生长的影响及冬春补光技术要点等方面进行综述,旨在为蔬菜育苗和生产提供技术支撑。

The growth of facility plants in most areas of northern China in winter and spring has the problem of light shortage.When plastic greenhouses,solar greenhouses,multi-span greenhouses and other facilities are affected by winter and spring weather,natural light cannot meet the needs of plants for light,leading to poor plant growth,which is an important reason for crop yield reduction,crop failure and quality decline.In winter or spring season of northern China,the temperature is low and the sunshine is short.Light is one of the main limiting factors for industrial vegetable seedlings.Vegetable seedlings and grafted seedlings are prone to weak seedlings,overgrowth and slow growth in low light environment,which seriously restricts the agricultural production.In order to solve the problem of insufficient light in facility production,the use of supplementary light technology is an important means of modern agriculture.This paper mainly reviews the effects of different light environments on the growth of vegetable seedlings and the key points of winter and spring light supplementation technology,aiming to provide technical support for vegetable seedling raising and production.