Bioscience Methods 2025, Vol.16, No.3, 117-136 http://bioscipublisher.com/index.php/bm 130 parts are finally treated harmlessly, which greatly reduces the impact on the environment. At the same time, recycling itself also creates economic value and employment opportunities. For example, returning biogas fertilizer to the fields improves the quality of agricultural products, straw feed reduces breeding costs, and by-product processing has spawned new product categories. The circular bioeconomy replaces fossil resources by reducing the use of primary resources, recycling materials, restoring ecosystems, and converting inevitable waste into energy or products (Pal et al., 2024). Pan'an's practice well illustrates this concept. In future development, Pan'an plans to further improve the rural environmental monitoring and waste collection system to improve the efficiency of recycling; at the same time, with the help of digital technology, it can realize the intelligent control and optimization of the rural resource circulation process (such as the Internet of Things monitoring the operation of biogas tanks, blockchain tracking agricultural product inputs, etc.). By continuously improving the circular bio-economy system, Pan'an is expected to achieve "zero waste" in agriculture and "zero pollution" in rural areas, providing a model for the construction of rural ecological civilization across the country. 6 Challenges and Recommendations Related to Biological Development 6.1 Weak platforms for biological research and application Although Pan'an has achieved certain results in promoting agriculture with biotechnology, overall, the local area lacks a high-level agricultural biological research and technology transformation platform, which to a certain extent restricts the in-depth and continuous innovation. The study pointed out that compared with developed agricultural technology countries such as Israel and Japan, my country's ecological agriculture development model is still relatively single, with a shortage of high-quality professional talents, and relatively backward agricultural infrastructure and scientific and technological innovation capabilities. These problems are particularly evident at the county level. Pan'an has not yet established a special agricultural research institute or key laboratory, and its scientific research force mainly relies on the assistance and cooperation of superior scientific research units. For example, the Polygonatum project needs to rely on the provincial university team to solve the problem, and the local area lacks independent scientific research capabilities. Some biotechnologies suitable for local characteristic industries have not been fully developed, such as tissue culture and rapid propagation of rare medicinal materials, and the development of new biological fertilizers, which require stronger platform support. The channels for technology transformation and promotion also need to be unblocked. Many farmers reported that there are limited information channels for obtaining practical new technologies and few training opportunities. Traditional agricultural technology extension stations are understaffed, knowledge is not updated in a timely manner, and interaction with farmers is not close enough. This makes it difficult for some advanced biotechnologies to be popularized in production in a timely manner. A study on agricultural technology promotion in China also revealed similar problems: the current promotion system has the phenomenon of "technological disembeddedness", technology promotion is out of touch with farmers' actual needs, and many classroom training contents do not match farmers' actual production. The situation in Pan'an is the same. Some farmers are still accustomed to traditional experience farming, and know little about or cannot operate new technologies such as precision fertilization and biological pest control, and miss the opportunity to increase production and improve quality. Therefore, it is imperative to strengthen the construction of agricultural biological research and promotion platforms. First, establish a regional agricultural biotechnology research and development center or joint laboratory, integrate scientific research resources in local characteristic industries (such as Chinese medicinal materials, tea, bees, etc.), strive for joint construction by universities and enterprises, and carry out targeted technical research. Second, build an industry-university-research collaborative innovation platform, such as setting up an "Agricultural Biological Industry Innovation Alliance", regularly organize scientific researchers, new professional farmers and agricultural enterprises to connect and exchange, and accelerate the trial demonstration and transformation of scientific research results in Pan'an. Third, strengthen the capacity building of grassroots agricultural technology promotion systems. Increase fiscal investment, enrich the staffing of township agricultural service centers, and introduce or cultivate compound agricultural technicians who understand both biotechnology and farmers' needs. Explore the "Internet + agricultural technology promotion" model, use digital platforms to publish technical information, conduct online training and remote diagnosis, and make up for the shortage of manpower. In particular, we can learn from the experience of Digital Agricultural Technology Extension Service
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