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早春气温低,光照弱,气候忽冷忽热,导致早春部分大棚内蔬菜长势减弱、营养不足、叶片发黄、病虫害较多,影响了蔬菜瓜果的产量和品质。要采取积极的管理应对措施,保证大棚蔬菜正常生长。一、合理调控温光蔬菜设施的透光覆盖物的质地直接影响设施内的光照强度和光质,所以要选用合适的棚膜,在保持原有的温光性能优化结构的基础上,采用新
Low temperature in early spring, weak light, hot and cold climate, leading to part of early spring vegetables in some shed weakening, lack of nutrition, leaves yellow, more pests and diseases, affecting the yield and quality of fruits and vegetables. To take a positive management response measures to ensure the normal growth of greenhouse vegetables. First, the reasonable control of the light translucent cover of Wenguang facilities directly affect the light intensity and light quality within the facility, so we should choose a suitable greenhouse film, while maintaining the original structure of the optimization of temperature and light performance, based on the new