Development of soil organic matter measurement system

We managed to create a self-developed sensor system, which is based on the simultaneous reflectance measurements at 660 and 940 nm wavelength. The ratio of refers concentration soil organic carbon (SOC). This instrument has calibration range 1.19 6.05 SOC%. SOC content twenty-six samples was measured by system standard spectrophotometric method we found that estimation in had good approximation differences ranged from –27.72% ~ + 6.99%. strong correlation between data reference (R2 = 0.73) values indicated our (Reference (SOX%) =1.4857 × E (SOC%) – 0.7393). measurement easy use displays records real time. allows one map an agricultural production area using its built-in GPS unit.