Bordin I, Neves CSVJ, Medina C de C, Santos JCF dos, Torres E, Urquiaga S. Dry matter, carbon and nitrogen of soybean and corn roots in conventional tillage and no‑tillage systems. PAB. 2009;43(12):1785-1792. doi:10.1590/S1678-3921.pab2008.v43.1087