三级联动促绿肥增效，惠州探索绿色农业新路径

Core Viewpoint - The article discusses the innovative practices in green agriculture being explored in Huizhou, Guangdong, focusing on the promotion of green manure as a means to enhance soil health and sustainable agricultural development [2][3][5]. Group 1: Green Manure Promotion - Guangdong has been actively promoting the cultivation of green manure crops like purple vetch to ensure food security and support ecological civilization [2][3]. - A joint research team from the Guangdong Agricultural Environment and Soil Quality Protection Center and local agricultural departments conducted a study on winter green manure planting and green farming practices in Huizhou [4][5][12]. - The research aims to summarize experiences and innovate industry models to provide a "Huizhou experience" for the province's agricultural green transformation [7][8]. Group 2: Three-Wheel Drive Approach - Huizhou is advancing green manure cultivation through a "three-wheel drive" approach, focusing on system innovation, seed source conservation, and model exploration [8][51]. - The city has established a four-level agricultural technology service system to support green manure promotion, integrating expert guidance and local talent [30][31]. - By 2025, the area planted with purple vetch in Huizhou is expected to reach nearly 12,000 acres, marking a significant increase [32][33]. Group 3: Technical Models for Green Manure - Huizhou has developed three clear and feasible pathways for green manure promotion, including the "rice-rice-manure" model, which can reduce nitrogen fertilizer use by 10%-30% and increase rice yield by approximately 80 pounds per acre [39][40]. - The "fruit and tea garden intercropping" model utilizes summer and winter green manure varieties to maintain soil health and improve crop quality [43][45]. - The "rapid soil improvement" model targets newly cultivated and degraded lands, using fast-growing green manure varieties to enhance soil organic matter and structure [48][50]. Group 4: Future Directions - The research team emphasized the need to strengthen the three-level linkage mechanism to enhance the breeding of superior green manure varieties and conserve local genetic resources [54][55]. - Huizhou aims to deepen the integration of green manure planting with green farming practices, providing replicable experiences for the province's agricultural green development [59][60]. - The ongoing transformation of the green manure industry from merely "soil nurturing" to "wealth generation" reflects a significant shift in agricultural practices in Guangdong [63][65].