**Author details**

Jucimare Romaniw1\*, João Carlos de Moraes Sá<sup>2</sup> , Ademir de Oliveira Ferreira<sup>3</sup> and Thiago Massao Inagaki<sup>1</sup>

\*Address all correspondence to: ju.romaniw@gmail.com

1 State University of Ponta Grossa, Campus de Uvaranas Ponta Grossa, PR, Brazil

2 Department of Soil Science and Agricultural Engineering, State University of Ponta Gros‐ sa, Paraná, Brazil

3 Soil Organic Matter Laboratory (LABMOS), State University of Ponta Grossa, Paraná, Bra‐ zil
