中国农业大学学报2017，Vol.22Issue(8)：124-132,9.DOI:10.11841/j.issn.1007-4333.2017.08.16
苏南地区变量施肥电子处方图系统的构建与应用
Construction and application of the electronic prescription map system of variable rate fertilization in Southern Jiangsu
摘要
Abstract
In order to provide a possible way to implement variable rate fertilization technology in rural areas of Southern Jiangsu,a simple method for obtaining the prescription of farmland fertilization was put forwarded according to Southern Jiangsu's agricultural production experience.A variable rate fertilization electronic prescription map system combined with Baidu map API was constructed and the structure and realization method of the system were introduced.The construction of electronic field map and the method of rapid location identification based on ordinary precision GPS module were also introduced in detail.A total of 13.3 hectares of experimental plots in Shuangyulong,Nanjing,Jiangsu Province,was taken as study case.The electronic prescription map system was constructed and embedded into an Android device.Experiments for testing the performance of the system and variable rate fertilization test were carried out in those natural fields.The results showed that the system test data were stable and the accuracy of location identification reached 86.8％ after Kalman filtering location information data from the GPS module when the testing points located in a distance less than 2 m from field boundary.The accuracy of location identification reached 100％ when the distance was more than 2 m.In the system,the relative error of actual sowing rate was less than 5.9％ indicating that the system effectively identified the location of the operation,and showed the ability to guide the field variable fertilization.In conclusion,the system has popularization and application prospects in Southern Jiangsu rural area.关键词
百度地图API/电子处方图变量施肥/GPS/定位识别Key words
Baidu map API/electronic prescription map variable rate fertilization/GPS/location identification分类
信息技术与安全科学引用本文复制引用
李锐,丁永前,余洪锋,杜莹莹,由静,史红栩,丁为民..苏南地区变量施肥电子处方图系统的构建与应用[J].中国农业大学学报,2017,22(8):124-132,9.基金项目
“十二五”国家科技支撑计划资助项目(2013BAD08B04-1) （2013BAD08B04-1）
大学生创新创业训练项目(201510307091) （201510307091）
