| China is a large agricultural country.The degree and level of agricultural development are directly related to the long-term stability and stability of the country.In remote and economically backward areas of China,the phenomenon of random fertilization and excessive fertilization still exists.The behavior of random fertilization not only causes unsustainable development of agricultural production,but also pollutes the ecological environment,and soil fertilization by soil testing is a solution to this problem.Key technologies.The main research results of this paper are as follows:Since the launch of the national soil testing and fertilization project in 2005,Sichuan has expanded from 18 project counties to 141 project counties between 2005 and 2009.Qianfeng District has begun to comprehensively promote soil testing and fertilization techniques during this period.At present,Qianfeng District has invested 80 million yuan in supporting funds at the district level,implemented land readjustment of 20,000 acres,fertility improvement of 32,000 acres,comprehensive improvement of 25,000 acres of land,and built 35,000 acres of high-standard farmland.In order to create an atmosphere for the promotion and application of technology,it is necessary for the people to understand and use the soil testing and fertilization technology for agricultural production.Take various forms to carry out training and guidance services on soil testing and formula fertilization technology to ensure that the technology reaches the households.In order to further strengthen the application and promotion of soil testing formula fertilization technology,Qianfeng District of Guang’an City introduced the soil testing formula fertilization technology expert system project,and introduced third-party institutions for system development and assistance promotion.Then,during the project promotion process,a series of encountered The problem is worth studying.In this context,this article takes the development and promotion process of the expert system for soil testing and fertilization in Qianfeng District of Guang’an City as a case study.First,it analyzes the geographical location,climate and landforms,land resources,and agricultural production status of the research area.Network theory,detailed discussions on the extension logic,operating mechanism,organizational behavior,and extension translation process of the two extension agents in the district and county system and the agricultural cooperatives outside the system,summarize the experience of the soil testing and fertilization technology,and then Based on the analysis of the current status of promotion,the existing problems are summarized and summarized from the capital investment,promotion team,personnel training,and institutional participation of soil testing and fertilization technology promotion,and specific solutions are proposed. |