Core Viewpoint - Shandong province is facing significant challenges in sweet potato production due to prolonged rainy weather since September, leading to reduced yield and quality issues [1] Group 1: Impact of Weather Conditions - Continuous rain has caused soil saturation, resulting in weakened plant growth and increased susceptibility to diseases [1] - The adverse weather has led to physiological issues such as cracking and hollowness in sweet potatoes, along with a higher risk of rot during storage [1] Group 2: Agricultural Management Recommendations - Strengthening late-stage field management is crucial, including timely drainage and soil moisture reduction techniques [2] - Leaf fertilization with a mixture of urea and potassium dihydrogen phosphate is recommended to enhance photosynthesis and nutrient accumulation [2] - Focus on disease prevention, particularly for stem and root rot, using specific fungicides through foliar spraying and root irrigation [2] Group 3: Harvesting Strategies - Harvesting should prioritize sunny weather and suitable drying conditions, with a focus on minimizing damage during collection and transport [3] - Immediate transport to drying areas is essential, and if conditions are unfavorable, harvesting should be postponed [3] - Implementing careful handling practices during harvesting and transport can significantly reduce the risk of spoilage [3] Group 4: Storage Management - Pre-storage treatment is necessary, including cleaning and disinfecting storage facilities, and ensuring proper drying of sweet potatoes before storage [4] - Monitoring temperature and humidity during storage is critical, with optimal conditions set between 10°C-14°C and 80%-90% relative humidity [4] - Regular inspections during the storage period are essential to identify and manage any signs of rot or disease promptly [4]