@article{article17f265a9,
title   = {Adaptation and Validation of Colorimetric Methods in Determining Ammonium and Nitrate on Tropical Soils},
author = {Sattolo, Thales Meinl Schmiedt and Otto, Rafael and Mariano, Eduardo and Kamogawa, Marcos Yassuo},
year = {2016},
doi = {10.1080/00103624.2016.1243710},
journal   = {Communications in Soil Science and Plant Analysis}
}