山东发布应对连阴雨天气加强中药材生产技术指导意见

Core Viewpoint - The Shandong Provincial Department of Agriculture and Rural Affairs has issued guidelines to mitigate the adverse effects of continuous rainy weather on traditional Chinese medicine (TCM) production, aiming to enhance quality and yield while ensuring stable supply [1] Group 1: Impact of Weather on TCM Production - Continuous rainy and low-light conditions since mid-September have led to excessive soil moisture, waterlogging, and root damage, negatively affecting the growth and quality of TCM, particularly for root medicines like Salvia miltiorrhiza, Panax quinquefolius, and Scutellaria baicalensis [1] - The current priority in field management is to ensure effective drainage to prevent root rot due to prolonged waterlogging [1] Group 2: Agricultural Practices for Recovery - Timely soil cultivation and aeration are essential once soil moisture is suitable, with a focus on breaking surface compaction to enhance root respiration and growth [2] - Enhancing plant resilience is crucial, particularly for deep-rooted medicines like Salvia miltiorrhiza, which have suffered from root damage; foliar fertilization with potassium dihydrogen phosphate and plant growth regulators is recommended [2] - Controlling pests and diseases through timely removal of dead plants and appropriate pesticide application is vital to maintain the quality of TCM [2] Group 3: Harvesting and Processing Guidelines - Harvesting times for deep-rooted medicines should be flexible based on field conditions, with specific recommendations for Salvia miltiorrhiza and Panax quinquefolius to prevent quality degradation due to waterlogging [3] - Post-harvest handling should avoid stacking and instead utilize well-ventilated areas for drying, with a preference for mechanical drying to control moisture levels effectively [3]