Weihai Meteorological Bureau Weihai 264300 China;
College of Information Science and Engineering Shandong Agricultural University Taian 271018 China;
Agruicultural college Shandong Agricultural University Taian 271018 China;
Xiangtan University School of Public Administration Xiangtan 411105 China;
State Key Laboratory of Crop Biology Shandong Agricultural University Taian 271018 China;
Farmland; Soil moisture; ZigBee technology; GPRS technology; Database;