Studying And Establishing The System Which Based On Webgis Soil Determination And Prescription Fertilization In

Agriculture plays main role in our country because of the basic foundation it takes, and is also an export country. Unreasonable fertilization still exists in the traditional agriculture productivity. This situation will cause bad influence to the principal of the agriculture productivity、productivity safety、usage ratio of fertilization、environment protection and the sustainability for soil. To solve this problem, reasonable method of fertilization for the agriculture crops should be taken. Formula fertilization by soil testing has been widely used at home and broad and achievement has been get.With the development of information technology, GIS technology gets high achievement. It is necessary to make a combination between agriculture and information technology. It is widely accepted by people that the construction of GIS technology with agriculture GIS. The networked for GIS technology and the development of the WebGIS provides further support to the network of the agriculture information system. This technology makes the application for agriculture GIS realized. As the branch of the agriculture GIS, the formula fertilization by soil testing plays main role in the agriculture productivity.There are many kinds of formula fertilization by soil testing in the current agriculture area. But many backwards exist in most of systems such as single version mode、difference between geographic environment、software language obstacle. As a result, it could not satisfy the requirement of this region. The particle takes Hongxing farm as an example and establishes the formula fertilization by soil testing based on the WebGIS. The main contents of the particle include:1. Making introduction to the WebGIS science and secondary development platform of SuperMap IS.NET.2. Establishing the fertilization model for the current situation based using soil sampling、testing data and the vegetation growth and harvest based on detailed situation in the research area.3. The establishment of the database including attribute database、spatial database and model information base; the management of database and the choice of the GIS spatial interpolation.4. The particle introduces the development environment of the system and gives detailed information for the established models of thematic analysis, crop planting analysis, historical data analysis, formula fertilization by soil testing and the remote sensing function. The formula fertilization by soil testing system established implements the function of fertilization strategy based on the website of farm. The system has the characteristic of concise interface, being simple to operate, easy to grasp and quick response. The users could find plots information and get fertilization advice. Meanwhile, the agriculture apartment could collect information based on the system and make analysis on the problem and planning strategy related to the agriculture productivity. The system enlarges the using range for the agriculture information and provides reliable fertilization system. It promotes the informative management of the farm and gives instruction to the effective management for the farm.