文献类型： 会议论文

第一作者： S. Shibusawa

作者： S. Shibusawa ¹ ; W.S. I Made Anom ¹ ; H. Sato ¹ ; A. Sasao ¹ ; S. Hirako ² ; A. Otomo ³ ; S. Blackmore ⁴ ;

作者机构： 1.Faculty of Agriculture Tokyo University of Agriculture and Technology Fuchu, Tokyo, Japan

2.Omron Institute of Life Science Co. Ltd. Kyoto, Japan

3.Kumamoto Technopolis Foundation Applied Electronics Res. Center Kumamoto, Japan

4.Department of Agricultural Sciences The Royal Veterinary and Agricultural UniversityTaastrup, Denmark

关键词： soil reflectance;underground;sensing;SOM;moisture

会议名称： International Conference on Precision Agriculture

主办单位：

页码： 243/1-243/13

摘要： A prototype soil spectrophotometer was developed for getting soil reflectance at depths of 200 to 350 mm with an accepted accuracy. The reflectance could be used for evaluating moisture, soil organic matter (SOM), and so on, even though the travelingspeed was limited below 0.2 m/s, and no GPS was installed. Key points in the revised spectrophotometer design were: use of a RTK-GPS, improved soil penetrator to ensure a uniform soil surface under high speed conditions, and all units are re-arranged forcompactness. Test runs proved that the traveling speed could be increased up to about least 1 m/s, and that the reflectance can also be used for generating soil maps of moisture and SOM.

分类号： S-794