早春茬薄皮甜瓜多层覆盖提早栽培技术集成与应用OA

Aiming at the problems such as insufficient application of advanced technologies and limited facility environment regulation in the early cultivation of'Yutun Melon',a national geographical indication product,this study integrated an advanced technical system of early cultivation with multi-layer coverage.The system adopted a five-layer insulation structure consisting of large arch shed,secondary thermal curtain,middle shed,small arch shed and plastic film,combined with double-cut root grafting,'one-main-two-auxiliary'stereo pruning,under-film integrated water and fertilizer management,green pest and disease control,as well as refined temperature,light,water and fertilizer regulation.Compared with conventional early-spring cultivation,the transplanting date of the system was advanced to mid-January(45-60 days earlier),realizing staggered marketing in early April.The application of chemical fertilizers and pesticides of the system was reduced by 30％,yield reached more than 4 000 kg per 667 m2 with an increase of 35％,and the average market price increased by 41.3％.The technology significantly improved yield,quality and economic benefits,providing technical support for the high-quality development of protected melon industry in southwestern Shandong.