“工厂”建在田边 肥料产自田间 宁波创新采用秸秆“原位堆腐制肥”模式

Core Insights - The implementation of "in-situ composting" technology for straw management in Jiangbei District provides a new solution for the resource utilization of straw [1][2] - The process involves stacking straw bales, applying urea and microbial agents, and covering them with black film for about 40 days to produce organic fertilizer [1] - The technology significantly reduces the cost of straw treatment by 30% to 50% compared to traditional methods, while also decreasing the need for chemical fertilizers [1] Group 1 - The new composting model requires only 10 square meters of land to process straw from 50 acres of farmland, making it operationally simple and cost-effective [1] - The internal structure of the composting reactor includes ventilation pipes and digital temperature monitoring, allowing for efficient fermentation and real-time data tracking [1] - The economic benefits of this technology are highlighted, with potential earnings of 1.4 million yuan if applied to just 1% of the available straw resources in Ningbo [2] Group 2 - The use of scientifically composted organic fertilizer not only mitigates air pollution from straw burning but also enhances soil organic matter and reduces chemical fertilizer usage [2] - In 2022, Ningbo collected 710,000 tons of straw, with 460,000 tons (65%) being utilized as fertilizer, indicating significant room for improvement in straw utilization rates [2] - The initiative aligns with agricultural carbon peak goals, promoting a green cycle in agricultural production while lowering costs [2]