SOIL EC MAPPING USING RTSS
This paper describes spatial variation maps of soil electrical conductivity (EC) obtained by both spectroscopic and capacitance methods using a real-time soil sensor (RTSS) SAS 1000, commercialized by Shibuya Kogyo Co. The comparison in soil EC records between the spectroscopy and the capacitance were also discussed. The spectroscopic approach used the soil reflectance of 350-1700 nm wavelengths at depths of around 0.2m, followed by application of chemo-metrics to predict soil parameters including soil EC. The record influenced by mechanical vibration of tractor and so on. The capacitance approach used the soil capacitance by the probe of electrode on the tip of the penetrator to monitor the cutting soil while the quality of data was strongly influenced by the state of interface between soil and the blade. Result showed that there are significant differences variation patterns in soil EC maps by spectroscopy and capacitance sensor, and also showed an area of high error in soil EC prediction.
soil EC spectroscopy capacitance spatial variability
Ni Nyoman SULASTRI Sakae SHIBUSAWA Masakazu KODAIRA Ryota TAKAZAWA LI You Yuya NAGAMI
Tokyo University of Agriculture and Technology,3-5-8 Saiwai-cho,Fuchu-shi,Tokyo 183-8509,Japan
国际会议
北京
英文
1-5
2009-10-14（万方平台首次上网日期，不代表论文的发表时间）