Penentuan Kadar Urea Menggunakan Soil Sensor Berbasis Impedansi Spektroskopi

Determination of urea concentration in soil sample using soil sensor has been conducted. This study used inceptisol soil type without any treatment, then the soil sample was cleaned from dirt using siever and added urea dissolved by water. The concentration of urea in soil was varied but not exceed 3 grams per 1 kg sample, so that characterization process to determine character of soil given ur…