Fig. 4. Calibration curves obtained using (A) the CS-615 and (B) the Tektronix 1502-C instruments. Mineral refers to substrates with <0.20 kg kg-1 of organic matter content, and organic, with 0.20 kg kg-1 of organic matter content and more.
Fig. 4. Calibration curves obtained using (A) the CS-615 and (B) the Tektronix 1502-C instruments. Mineral refers to substrates with <0.20 kg kg-1 of organic matter content, and organic, with 0.20 kg kg-1 of organic matter content and more.