RESEARCHES OF DIGITAL DESIGN SYSTEM OF RICE CULTIVATION BASED ON WEB AND SIMULATION MODELS

In order to integrate web with crop growth simulation and decision-making support system,the field experiment of different basal levels was carried out in experiment area of Jiangsu Academy of Agricultural Sciences in 2005 adopting 4 cultivars such as "Wuyungeng 7", "Yangdao 6", "Yueyou 948" and "Nangeng 41",which mainly were used in collecting cultivar parameters and updating database of them.The database of rice cultivars,soil and weather data were developed using SQL Server 2000.The pages of digital design system of rice cultivation based on web and simulation model(DDSRCBWSM) were designed using Visual Studio.Net,which included register,the main page,cultivar parameter management,site data management,parameter adjustment,decision making for rice cultivation,and so on.The DDSRCBWSM accorded with TCP/IP agreements,which could be installed and run in server(IIS5.0),and be browsed on internet,it inherited mechanism,universal adaptability and utility of rice cultivation simulationoptimization-decision making system(RCSODS),combined web techniques with research of rice growth models,set up web system of RCSODS,made agricultural technicians of main rice production area of china gain pre-sowing optimization cases and rice management suggestion of the current year with dynamic,goal and digital characteristic in accordance with soil,cultivar and weather conditions online,and to fulfill technical direction through many kind manner such as paper,internet,email,television,wall newspaper,and so on,eventually.