Core Viewpoint - The article highlights the recognition of Dongyuan County in Guangdong Province as a national model for agricultural green development, showcasing innovative practices in sustainable farming and resource utilization [2][3][8]. Summary by Sections Agricultural Green Development - The Ministry of Agriculture and Rural Affairs announced the third batch of typical cases for agricultural green development, with 31 cases receiving national promotion [2][4]. - Dongyuan County is the only county-level case from Guangdong Province selected for this recognition [3][8]. Innovative Practices - Dongyuan County's innovative practice, titled "Heavenly Selected Land and Fertilizer Cycle to Sketch a 'Green, Rich, and Beautiful' Rural Picture," focuses on sustainable agricultural practices [3][8]. - The county has implemented a model of "green fertilizer cultivation + technology empowerment" to transform modern agriculture [12]. Agricultural Output and Techniques - Dongyuan County has 288,000 mu of arable land, producing over 150,000 tons of grain annually, primarily rice [9][10]. - The county has adopted the cultivation of purple vetch as green fertilizer to enhance soil fertility, addressing issues caused by long-term reliance on chemical fertilizers [11][18]. Technological Integration - The establishment of the first purple vetch smart planting demonstration base in the province has been noted, with a core demonstration task covering 2,000 mu and an additional 3,400 mu of surrounding land [13][14]. - The integration of aerospace breeding, intelligent equipment, and precision management has led to a 21% increase in total soil nutrients [15]. Socio-Economic Impact - The initiative aims to expand the agricultural, cultural, and tourism industry chain of purple vetch, promoting ecological, economic, and social benefits in a coordinated manner [15]. - The project is part of a broader strategy to create a new model for rural revitalization that integrates production, living, and ecological aspects [16][17].