便携式精确农作系统的构建与应用

为实现农作物生产管理的便携式和精确化。该研究以精确农业技术思想为指导，课题组已有精确作物管理模型为基础，结合Pocket PC、嵌入式GIS、SQL Server CE和GPS技术，采用系统工程思想和软构件技术，开发实现了基于Pocket PC的便携式精确农作系统。系统具有地图操作、信息管理、栽培方案设计、肥水运筹、适宜生长指标设计、因苗动态调控以及系统帮助等功能。于2007－2008年在江苏、浙江及河南示范区进行了系统的示范与应用，结果表明，系统能根据田块的实际情况设计适宜的作物生产精确管理方案，精确管理田块的水稻平均产量达10 435.3 kg/hm2，产量增幅达12.83%；精确管理田块的小麦平均产量达8124.6 kg/hm2，产量增幅达9.02%，同时减少了氮肥投入。系统的建立为精确农作管理提供了新的服务载体和应用模式。

Development and application of portable precision farming system

In order to realize the portable and digital crop production management, based on the theory of precision agriculture and the precision crop management model, a Pocket PC-based portable precision farming system (PPFS) was developed by integrating Pocket PC, embedded-GIS, SQL Server CE and GPS, using the thought of system engineering and software component technology. The system realized the functions such as map handling, information management, cultural plans design, fertilizer and water management ect, suitable growth indices design, real-time regulations based on the crop growth status, and system help. In 2007-2008, the demonstration and application of PPFS were carried out in Jiangsu, Zhejiang and Henan provinces. The results in field experiments indicated that the system could design suitable crop precision management schemes according to field factual status, the average rice yield with precision management plans was 10435.3 kg/hm2 with increasing rate being 12.83%; Based on precision management plans, the wheat yield rose by 9.02% with an average yield of 8124.6 kg/hm2 and the amount of nitrogen fertilizer reduced. The present work provides a new service platform and application pattern for precision farming management.