Core Viewpoint - The new "Technical Specifications for Returning Livestock Manure to Fields" implemented from August 1 aims to enhance resource utilization and address pollution from livestock farming while reducing chemical fertilizer usage [1][2] Group 1: Implementation and Benefits - The implementation of manure return can effectively solve pollution issues from livestock farming and decrease the reliance on chemical fertilizers [1] - A practical manure distribution system has been established where livestock farmers transport manure to storage pools located in fields, allowing crop farmers to easily access and utilize the manure [1] - This system benefits both livestock farmers, who can extend their facilities and increase storage capacity, and crop farmers, who save on fertilizer costs and have convenient access to manure [1] Group 2: Construction and Management of Storage Pools - Local authorities need to strengthen guidance on the construction of manure storage pools, ensuring that livestock and crop farmers sign comprehensive utilization agreements [2] - The construction of storage pools should consider factors such as terrain, transportation conditions, and environmental protection measures like odor control and water-fertilizer integration [2] - Agricultural departments must provide guidance during the manure application phase to control application rates and methods, preventing secondary pollution [2]

Core Viewpoint - Resource utilization is a viable path to address pollution issues from livestock farming, but there are significant imbalances in crop and livestock integration in some areas, and the methods of resource utilization are not sufficiently scientific [1] Group 1: Factors Affecting Manure Disposal - Factors such as crop types, soil types, terrain, and climate significantly influence the disposal capacity of livestock manure [1] - In some regions, insufficient agricultural capacity leads to excessive application of manure, resulting in severe nutrient runoff and accelerating the eutrophication of receiving water bodies [1] - In mountainous and hilly areas, manure is often disposed of improperly, leading to localized nutrient excess while other areas lack sufficient nutrients [1] Group 2: Safety and Resource Utilization - With advancements in livestock farming technology, stricter requirements have been established for feed and additives, reducing heavy metals and antibiotics in manure, thus enhancing the safety of manure resource utilization [1] - The high nitrogen and phosphorus content in livestock manure should be prioritized for resource utilization [1] Group 3: Recommendations for Improvement - It is recommended that regions determine the minimum required planting area based on the least favorable conditions and enhance the capacity for manure disposal at the planting end [2] - Livestock manure can serve as a natural substrate for soilless cultivation, such as growing pig fodder; utilizing dry land for crops like corn to achieve integrated water and fertilizer management; and directing manure resources to greenhouse vegetable planting bases [2] - Overall, efforts should be made to improve the planting sector's capacity to absorb livestock manure through precise regional adjustments to enhance resource utilization levels [2]