In the cold greenhouses of the Guolou area, protected agriculture zone of Laohu Town, Dongping County, Taian City, the Hongyun No.1 Beibei pumpkins have reached maturity. Looking around, the small pumpkins resemble “red lanterns” nestled among the vines, creating a vibrant scene of harvest. Inside the greenhouses, farmers are methodically picking and sorting the pumpkins.