Organic Matter and Carbon in a Cambisoil After Incorporation of Biochar for Eucalyptus benthamii

This study aimed to evaluate the leaching of biochar to 40 cm depth in the soil under Eucalyptus benthamii depending on dose application of biochar. The experiment is located in the town of Inácio Martin-PR, the property of Mr. Antonio Verones. It was used in three treatments in randomized block design, them being T1–0 t/ha, T2–20 t/ha and T8–40 t/ha of biochar. Samples were collected every 5 cm, with the final depth of 40 cm. In each plot, three samples were collected to form a composite sample. For quantitation of soil organic matter (SOM), the method of incineration was used, while for total organic carbon (TOC), Walkley-Black (1934) method was used. It can be seen that biochar has decreased the quantities of organic matter present in soil, owing to the action of microorganisms decomposing organic matter. These results demonstrate the need for further studies and researches related to biochar in the soil.