A. Lange, W. A. R. L. Cabezas, and P. C. O. Trivelin, “Recovery of nitrogen from ammonium sulfate and nitrate by corn crop in no-tillage system”, PAB, vol. 43, no. 1, pp. 123–130, Jan. 2008, doi: 10.1590/S1678-3921.pab2008.v43.7968.