| Agriculture is the foundation of the national economy, extensive and unreasonable way of agricultural production, resulting in deteriorating agricultural ecological environment, agricultural production, lack of resources, Punic, declining quality of agricultural products, such as a series of problems. In view of the current model of farming and fertilization methods, according to national food security in the new period of the new requirements of the new situation, the Ministry of Agriculture, the Ministry of Finance proposed a nationwide campaign Fertilization soil testing technology to promote the work of the major policy decisions in 2005.Fertilization of soil testing is recognized at home and abroad more mature application of modern technology, the use of information technology development of computer application systems have been proved to be the decision-making to promote soil testing Fertilization effective technical measures. Geographic Information System (GIS) is to study computer science and have an emerging cross-disciplinary, geographic information systems (GIS) used in agriculture, the solution of practical agricultural planning and decision-making, technology promotion, production forecasts, issues such as fertilizer recommendation is the development of modern agriculture needs. With a rugged touch-screen, the reaction speed, space-saving, easy to operate, etc., suitable for the provision of public information inquiries, at the same time it is suitable for those who do not know how to operate the computer.At present, many research institutions conditional local conditions combined with the development of agricultural experts in their respective systems, fertilization or fertilization expert system decision-making system. However, due to the software itself, such as computer or network needs the support of most of the grass-roots level in China to promote agricultural sector and rural areas are not very well-off, computer and network hardware such as the construction of the power facilities are limited, resulting in the promotion and use of similar systems not widespread.In this study, similar software has been combined with the lack of research, agriculture and information technology through the close integration of the fertilization decision-making system and touch screen technology, the use of Microsoft Access database, as well as the establishment of property established by the vector spatial database, in accordance with the establishment of a large number of experimental data fertilization model to Microsoft. NET Framework as a development platform, using C # language, for the secondary development of GIS software, the final completion of the form of touch-screen operation Fertilization soil testing decision-making touch-screen system. System, including regional fertilization, precision fertilizer application, soil nutrients, soil fertility evaluation and distribution of five modules, to provide project counties regional and accurate formula query application and print functions, and include soil nutrients, soil fertility levels and soil types of the county distribution of the query. System user-friendly, easy to understand, practical, easy and convenient for the farmers with the guidance of scientific fertilization for grass-roots promotion of agricultural sector to provide technical support for the agricultural fertilizer business networks for enterprises and application platform for government decision-making provide a reference. The development and application of the system are the results of soil testing digital Fertilization organic extension of soil testing is to accelerate the popularization and application of Fertilization effective technology platform, is the measured soil depth Fertilization to strong measures in the agricultural villages and peasant households useful information attempt, and innovation as an effective way to agricultural services and has broad prospects for the market demand and promote.
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